Did Paul or pippa do it correctly

The calculated z-value of 2.45 is less than the critical value of 2.58, we fail to reject the null hypothesis.

To test whether there is convincing evidence that the proportion of people who experience choice blindness is different for the picture group and actual candy group, we need to conduct a hypothesis test.

Let p1 be the proportion who experiences choice blindness based on a picture treatment, and p2 be the proportion who experiences choice blindness based on seeing the actual candy treatment.

Our null hypothesis is that there is no difference between the two proportions:

H0: p1 = p2

Our alternative hypothesis is that there is a difference between the two proportions:

Ha: p1 ≠ p2

We will use a two-sample z-test to test this hypothesis. The test statistic is:

z = (p1 - p2) / sqrt(p*(1-p)*(1/n1 + 1/n2))

where p = (x1 + x2) / (n1 + n2) is the pooled sample proportion, x1, and x2 are the number of people who experienced choice blindness in the picture and actual candy groups, respectively, and n1 and n2 are the sample sizes.

Using the given information, we can calculate the sample proportions as:

p1 = (21/50) = 0.42

p2 = (13/50) = 0.26

The pooled sample proportion is:

p = (21 + 13) / (50 + 50) = 0.34

The sample sizes are n1 = n2 = 50.

Substituting these values into the formula for the test statistic, we get:

z = (0.42 - 0.26) / sqrt(0.34*(1-0.34)*(1/50 + 1/50)) = 2.45

Using a standard normal distribution table, we can find the critical values for a two-tailed test with a significance level of 0.01:

\(z_crit = ±2.58\)

Since our calculated z-value of 2.45 is less than the critical value of 2.58, we fail to reject the null hypothesis. Therefore, we do not have convincing evidence to conclude that the proportion of people who experience choice blindness is different for the picture group and actual candy group at a significance level of 0.01.

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The surface area of the regular pyramid is equal to 1209 m² to the nearest whole number. The first option is correct.

Area of a regular polygon = 1/2 × apothem × perimeter

Area of the hexagon = (1/2 × 8.5√3 × 102) m²

Area of the hexagon = 750.8440 m²

Area of one triangle face = (1/2 × 17 × 9) m²

Area of one triangle face = 76.5 m²

Area of six triangle face = (76.5 × 6) m²

Area of six triangle face = 459 m²

Surface area of the regular pyramid = 750.8440 m² + 459 m²

Surface area of the regular pyramid = 1209.8440 m²

Therefore, the surface area of the regular pyramid is equal to 1209 m² to the nearest whole number. The first option is correct.

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There are a total of 8 relations on the set {1,2,3}.

A relation on a set is a subset of the Cartesian product of the set with itself. In other words, a relation on a set is a set of ordered pairs, where each ordered pair consists of two elements from the original set.

The Cartesian product of the set {1,2,3} with itself is {(1,1), (1,2), (1,3), (2,1), (2,2), (2,3), (3,1), (3,2), (3,3)}.

Each relation on the set {1,2,3} is a subset of this Cartesian product. Since there are 9 elements in the Cartesian product, there are 2^9 = 512 possible subsets, and therefore 512 possible relations on the set {1,2,3}.

However, we are only interested in the relations that include all three elements of the original set. There are 8 such relations, which are:

1. {(1,1), (2,2), (3,3)}
2. {(1,2), (2,3), (3,1)}
3. {(1,3), (2,1), (3,2)}
4. {(1,1), (2,3), (3,2)}
5. {(1,2), (2,1), (3,3)}
6. {(1,3), (2,2), (3,1)}
7. {(1,1), (2,1), (3,1)}
8. {(1,2), (2,2), (3,2)}

So the answer is 8 relations on the set {1,2,3}.

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To determine if there has been a change in the distribution of motivations for using a credit card among college students, a survey of 425 students was conducted.

The alternate hypothesis states that the distribution of motivations differs from the old survey. The critical value and rejection region need to be determined to test this hypothesis.

To test if there has been a change in the distribution of motivations, the null hypothesis assumes that the distribution remains the same as in the old survey, while the alternate hypothesis suggests a difference. In this case, the alternate hypothesis is that the distribution of motivations differs from the old survey.

To determine the critical value and rejection region, the significance level (α) needs to be specified. In this case, α is given as -0.005. However, it seems there may be some confusion in the provided information, as a negative significance level is not possible. The significance level should typically be a positive value between 0 and 1.

Without a valid significance level, it is not possible to determine the critical value and rejection region for hypothesis testing. The critical value is typically obtained from a statistical table or calculated based on the significance level and the degrees of freedom.

In conclusion, without a valid significance level, it is not possible to determine the critical value and rejection region to test the hypothesis regarding the change in the distribution of motivations for credit card usage among college students.

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Answer: A

Therefore, the answer is A.

Answer:

Step-by-step explanation:

The null hypothesis is that the population mean is equal to 3 minutes. The calculated p-value from the sample data is 0.28, which is higher than the 0.05 significance level.

not significantly more than 3 minutes.

The null hypothesis is that the population mean is equal to 3 minutes. The calculated p-value from the sample data is 0.28, which is higher than the 0.05 significance level. Therefore, we cannot reject the null hypothesis and conclude that the mean of the population is not significantly more than 3 minutes.

1. The null hypothesis is that the population mean is equal to 3 minutes.

2. A sample of 100 customers was taken, with an average length of calling time of 3.1 minutes and a sample standard deviation of 0.5 minutes.

3. The p-value from the sample data is 0.28, which is higher than the 0.05 significance level.

4. Therefore, we cannot reject the null hypothesis and conclude that the mean of the population is not significantly more than 3 minutes.

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a) A department manager receiving an allocation of costs will care about management's methodology of overhead allocation because the overhead costs allocated to their department will have a direct impact on the department's profitability and cost efficiency.

b) The allocation base is the measure used to determine how much of the overhead costs should be allocated to a particular department or product, while the allocation rate is the amount of overhead costs allocated to each unit of the allocation base

c) Budgets are an important tool for cost planning, but their effectiveness depends on how well they are developed and implemented.

a) If the allocation method used by management is not accurate or fair, it could result in the department being burdened with more costs than they actually incur, which could affect their ability to meet their targets and objectives. It is, therefore, important for department managers to ensure that the allocation of costs is done fairly and accurately.

b) The allocation base and rate are important because they determine how the overhead costs are allocated to different departments or products.

Different allocation bases and rates can result in significantly different amounts of overhead costs being allocated to different departments or products, which can impact their profitability. While all of the overhead costs eventually make their way to the income statement, the allocation of these costs can have a significant impact on the accuracy of the income statement and the ability of the organization to make informed decisions.

c) Budgets can be helpful in providing a roadmap for achieving the organization's goals and objectives, but they need to be flexible enough to adapt to changing circumstances and priorities.

The budget(s) that are most important to the organization's success will depend on the nature of the organization and its objectives. However, typically the operating budget, capital budget, and cash budget are the most important budgets for most organizations.

The government's budget process is similar to the operating budgeting process described in the chapter in that it involves the development of a budget to allocate resources and achieve goals. However, the government's budget process is more complex and involves additional considerations such as political priorities and public opinion. Additionally, the government's budget process involves a more detailed review and approval process than the operating budgeting process.

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a) Option D, (39,43) could be the 99% confidence limit.

b) The determined minimum sample size is 166.

a) For a given sample size, the confidence interval is just the range of values including the real population mean. The confidence interval is interpreted as follows:

The real population mean are contained in around 95% of the estimated confidence intervals.

The breadth of the interval and the confidence level (including 95% or 99%) have a positive connection.

As the confidence level rises, the range of both the confidence interval expands, implying that the lower limit of the interval shrinks and the top bound of the interval expands.

Option B is the correct one among the available possibilities since it entirely follows the pattern. When compared to a 99% confidence interval, 33 should be less than 34, and 46 is more than 43.

b) s = Standard Deviation = $7,500 m = Margin of Error = $1,500 z = Empirical z-score at 95% CI = 2.575

The random sample for a 95% confidence interval is calculated as follows:

= (Z × s)² ÷ m²

= (2.575 × s)² ÷ m²

= (2.575 × 7500)² ÷ (1500)²

= 165.76

≈ 166

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The Area of the triangle with the coordinates given as A(-2, 2), B(6, 2), and C(0, 8) is 12 square units.

What is the Area of a Triangle with coordinates?

The study of geometry using coordinate points is known as coordinate geometry. If the triangle's three vertices are specified in the coordinate plane, the area of a triangle in coordinate geometry can be determined. In coordinate geometry, a triangle's area is the area or space it occupies in the 2-D coordinate plane.

In the given question, It is given the coordinate of vertices of the triangle.

A(-2, 2),

B(6, 2), and

C(0, 8)

and we know that the Area of the triangle with coordinates is given by:

\(\text { Area }=1 / 2\left[\begin{array}{lll}x_1 & y_1 & 1 \\x_2 & y_2 & 1 \\x_3 & y_3 & 1\end{array}\right]\)

That means:

\(\text { Area }=(\frac{1}{ 2})\left|x_1\left(y_2-y_3\right)+x_2\left(y_3-y_1\right)+x_3\left(y_1-y_2\right)\right|\)

Substituting the values to find the area:

\(\text { Area }=(\frac{1}{ 2})| -2(2-2) + 6(8-2) +0(2-2)|\)

Area = \(\frac{24}{2}\)

Area = 12 square units.

Hence, The Area of the triangle with the coordinates given as A(-2, 2), B(6, 2), and C(0, 8) is 12 square units.

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Answer:

239.36

Step-by-step explanation:

you do the 8 precent times 4 years =32 precent

then you calculate 32 % out of the 748 $  and the answer is 239.36 dollar

Explanation:

Going from figure (1) to figure (2) has us rotate 90 degrees counterclockwise. Note the smallest side of the green figure how it is horizontal, and it corresponds to the smallest side of the blue figure and it is vertical. The center of rotation is the top right corner of the green figure.

Then we apply a translation to go from figure (2) to figure (3). This is another way of saying we shifted the figure some distance left/right and up/down. In this case, we shifted 1 unit to the right and 4 units down.

The solution to the inequality is y ≤ -8. This means that any value of y that is less than or equal to -8 will satisfy the original inequality.

To solve the inequality y + 7 ≤ -1, we need to isolate the variable y on one side of the inequality sign.

Starting with the given inequality:

y + 7 ≤ -1

We can begin by subtracting 7 from both sides of the inequality:

y + 7 - 7 ≤ -1 - 7

y ≤ -8

The solution to the inequality is y ≤ -8. This means that any value of y that is less than or equal to -8 will satisfy the original inequality.

In the context of a number line, all values to the left of -8, including -8 itself, will make the inequality true. For example, -10, -9, -8, -8.5, and any other value less than -8 will satisfy the inequality. However, any value greater than -8 will not satisfy the inequality.

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The following question may be like this:

What is a solution of the inequality shown below? y+7≤-1

Answer:

B is the answer Hope this helps

Answer:

6f + 6g -5

Step-by-step explanation:

(6f - 3 + 2g) - (-4g + 2)

= 6f - 3 +2g + 4g -2

= 6f + 6g -5

Answer:

Step-by-step explanation:

(179 * 40) + (179 * 4) = 179 *(40 + 4) = 179 * 44

YES

(100 * 4) + 70*4 + 9*4 =  4 * ( 100 +70 + 9) = 4 * 179

No

4000 + 2800 + 360 + 280 +36 = 7876 = 179 *44

YES

(100 *44) + (70*44) + (9*44) = 44 * (100 + 70 +9) = 44 * 179

YES

179 *(4 +4) = 179 * 8

NO

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Let's find the slope :

now, the equation is in the general form of a straight line.

and here, the coefficient of x will be the slope of given line.

that is :

Answer:

The second graph

Step-by-step explanation:

t is greater than 4 and less than -1 but doesn't include the points 4 and -1 (thus the open circles)

The second graph represents the solution set to t > 4 or t < -1.

In open interval we do not include the point and represented by open circle in close interval we do include the points and represented by closed interval.

According to the given question we have to determine which graph represents the solution set t > 4 or t < -1.

We know when we represent less than or greater than in the number line we represent it as an open circle.

So, t > 4 will be represented by an open circle on the number line starting at 4  but not including which goes to positive infinity and t < -1 will be represented by an open circle at -1 not including which goes to negative infinity.

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The appropriate regression model depends on the stationarity properties of both the dependent and independent variables, as well as the error term. The researcher can use a standard OLS regression model with first-order differencing of both Y and X.

In the first scenario, both Y and X are I(0), which means they are stationary time series. In this case, the researcher can perform a standard linear regression analysis, as the stationary series would lead to a stable long-run relationship. The answer from this model will be reliable and less likely to suffer from spurious regressions. In the second scenario, Y is I(2) and X is I(0). This implies that Y is integrated of order 2 and X is stationary. In this case, the researcher should first difference Y twice to make it stationary before performing a regression analysis. However, this approach might not be ideal as the integration orders differ, which can lead to biased results.

In the third scenario, Y and X are both I(1) and the error term is I(0). This indicates that both Y and X are non-stationary time series, but their combination might be stationary. The researcher should employ a co-integration analysis, such as the Engle-Granger method or Johansen test, to identify if there is a stable long-run relationship between Y and X. If co-integration is found, then an error correction model can be used for more accurate predictions.

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The number of balloons out of 48 that will be red would be = 3/435

The number of balloons thrown in a water-ballon fight = 6,960 balloons.

The number of red balloons =870 balloons.

The number of balloons out of 48 that would be red; divide through by two.

= 48/6,960

= 24/3,480

= 12/1740

= 6/870

= 3/435

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Answer:

30 students

Step-by-step explanation:

The 15 students that came were 30% of the class:

30% = 15 students

To find 100%, we can first find 10% by dividing both sides by 3

10% = 3 students

(30% ÷ 3 = 10%, 15 ÷ 3 = 5)

Then, multiply both sides by 10 to get 100%

100% = 30 students

(10% × 10 = 100, 3 × 10 = 30)

Answer:2

Step-by-step explanation:

9+3=12  12*2=24   48/24=2

Answer:

=288

Step-by-step explanation:

=48/2.12

=288

can you give me the crown please :)

Answer:

$81.10

Step-by-step explanation:

Profit = total revenue - total cost

1 liter = 1000 mm

7 liter = 7000 mm

Number of jars needed = 7000 / 250 = 28

total revenue = number of jars sold x price per jar

28 x  $8.95 = 250.60

Total cost = $155.50 + (0.5 x 28) = 169.50

Profit = 250.60 -  169.50 = 81.10

The floor area of the engineer's model of the sugar factory is 10.825 square feet.

To determine the floor area of the engineer's model of a sugar factory in square feet, we need to convert the given measurements from inches to feet. Since there are 12 inches in a foot, we can divide both dimensions by 12 to convert them.

The length of the model in feet is 30 inches / 12 = 2.5 feet, and the width is 52 inches / 12 = 4.33 feet.

To find the floor area, we multiply the length by the width:

Area = Length × Width

= 2.5 feet × 4.33 feet

= 10.825 square feet

It's important to note that the given measurements are not a standard aspect ratio or scale for a sugar factory. The given dimensions may be scaled down for the model's convenience, so the calculated floor area is only applicable to the scale of the model.

In actuality, a sugar factory would have much larger dimensions.

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From the given graph we can observe that the blue figure is larger in size than the black figure. Hence, the figure is enlargement of the original figure.

Transform the shapes on a coordinate plane by rotating, reflecting, or translating them. The transformation, or f: X X, is the name given to the function, f, that maps to itself. After the transformation, the pre-image X becomes the picture X. Any operation, or a combination of operations, such as translation, rotation, reflection, and dilation, can be used in this transformation. A function can be moved in one way or another using translation, rotation, reflection, and dilation. A function can also be scaled using rotation around a point.

From the given graph we can observe that the blue figure is larger in size than the black figure. Hence, the figure is enlargement of the original figure.

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Explanation:-

To convert $2.20 per ft into per sq ft, you need to know the area of the space you are measuring. For example, if you have a room that is 10 ft by 10 ft (100 sq ft), the cost per sq ft would be $0.022 ($2.20 divided by 100). So, $2.20 per ft would be equal to $0.022 per sq ft in this case. It's important to note that the conversion rate will vary depending on the size of the space being measured.

To convert a linear foot price ($2.20 per ft) to a square foot price, you need to know the width of the material being used. The formula to do this is: Price per square foot = (Price per linear foot) / Width of material Once you have the width of the material, you can plug it into the formula to find the price per square foot.

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