The approaches used in lean systems to deal with quality include (I) designing quality into products and processes (II) insisting vendors provide high-quality materials (III) expecting workers to be involved in continuous improvement (IV) training workers in statistical process control

The distribution in residence is different today at a 0.05 level of significance can be conclude because the p-value = 0.0172

from the data given we can make the table below:

Categories       Observed(fo)        Expected (fe)        (fo-fe)²/fe

NW Oregon        3109           4357*0.727=3167.539       1.082

SW Oregon        902             4357*0.207=901.899           0

Central Oregon    244          4357*0.048=209.136         5.812

Eastern Oregon    102           4357*0.028=121.996         3.277

Sum =                    4357        4357                                   10.171

first,  null and alternative hypotheses need to be tested:

H0​:p1​=0.727,p2​=0.207,p3​=0.048,p4​=0.028

Ha​: The population proportion partially deviates from the value given by the null hypothesis

This corresponds to a Chi-Square test for Goodness of Fit.

then, Based on the data provided, the significance level is α=0.05, the number of degrees of freedom is df=4−1=3, so then the rejection region for this test is R={\(X^{2}X^{2}\)>7.815}.

after that we should do test statistic

The Chi-Squared statistic is calculated as follows:

∑\(^{n} _{i=1}\)\(\frac{(Oi-Ei)}{y} \\\) =   1.082+0+5.812+10.171 +3.277= 10.171

the we can make a decision about the null hypothesis by

\(X^{2} = 10.71 > X^{2} _{c} = 7.815\)

it is then concluded that the null hypothesis is rejected.

Therefore, there is enough evidence to claim that some of the population proportions differ from those stated in the null hypothesis, at the α=0.05 significance level.

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Answer:

A

Step-by-step explanation:

Linear equation involves two variables with the power of 1. B is quadratic equation

C and D are not even equations

Option C, which states that the sample variance is constant as the number of sample values rises when the samples are independent and regularly distributed

Each sampling distribution's variability declines as the sample size go up, becoming more and more leptokurtic. The sample distribution's range is less than the original population's range.

The margin of error & sample size has an inverse relationship, meaning that as sample size rises, sampling error falls. It is because the findings would be more accurate the more evidence you had.

The distribution's dispersion is gauged by the standard error. The dispersion decreases as the sample size increases and the distribution's mean moves closer to the population mean.

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The best fitting line minimizes the sum of the squared errors when using least-square regression.

When trying to find the best fitting line to a set of data points, the goal is to minimize the differences between the observed data and the predicted values on the line.

The least-square regression method achieves this objective by minimizing the sum of the squared errors, which is the sum of the squared vertical distances between each data point and the corresponding point on the line.

By using the least-square regression approach, we can determine the line that provides the best overall fit to the data by minimizing the total squared differences. This method takes into account all the data points and calculates the line that best represents the relationship between the variables of interest.

The least-square regression line is often referred to as the "best fitting" line because it provides the most accurate prediction of the dependent variable based on the independent variable(s). It is widely used in various fields, including statistics, economics, and social sciences, to analyze and model relationships between variables.

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Answer: an=2(-2)ⁿ⁻¹    a₉=512     a₆=-64

Step-by-step explanation:

Since we have an alternating minus sign in this sequence, therefore the first multiplier of the following sequence will be (-1)ⁿ.

And since the first term of the following sequence is positive, the first multiplier of the following sequence is (-1)ⁿ⁻¹.

The second multiplier of the following sequence is 2ⁿ because the sequence has the form: 2, 4, 8, 16, ..., 2ⁿ .

\(Thus,\ a_n=(-1)^{n-1}(2^n)\\\\ a_n=2(-2)^{n-1}\ \ \ (1)\)

Find the 9th and 6th terms of the sequence by formula (1):

a₉=2(-2)⁹⁻¹

а₉=2(-2)⁸

a₉=2(256)

a₉=512

a₆=2(-2)⁶⁻¹

а₆=2(-2)⁵

a₆=2(-32)

a₆=-64

Answer:

3rd bc its correct

Step-by-step explanation:

Question 14, Part (i)

Focus on quadrilateral ABCD. The interior angles add to 360 (this is true for any quadrilateral), so,

A+B+C+D = 360

A+90+C+90 = 360

A+C+180 = 360

A+C = 360-180

A+C = 180

Since angles A and C add to 180, this shows they are supplementary. This is the same as saying angles 2 and 3 are supplementary.

==================================================

Question 14, Part (ii)

Let

x = measure of angle 1

y = measure of angle 2

z = measure of angle 3

Back in part (i) above, we showed that y + z = 180

Note that angles 1 and 2 are adjacent to form a straight line, so we can say

x+y = 180

-------

We have the two equations x+y = 180 and y+z = 180 to form this system of equations

\(\begin{cases}x+y = 180\\y+z = 180\end{cases}\)

Which is really the same as this system

\(\begin{cases}x+y+0 = 180\\0+y+z = 180\end{cases}\)

The 0s help align the y terms up. Subtracting straight down leads to the equation x-z = 0 and we can solve to get x = z. Therefore showing that angle 1 and angle 3 are congruent. We could also use the substitution rule to end up with x = z as well.

Answer:

Hey there!

He can create 7 plates at most, with one carrot cake and one marble cake on each plate.

Hope this helps :)

Answer: f(x)=90

Step-by-step explanation:

f(x)=-(-9)^2-(9)     substitute -9 for x

f(x)=9^2+9           simplify negatives

f(x)=81+9             simplify exponents

f(x)=90                 add

Answer:

0.01886792452

Step-by-step explanation:

2.6 ÷ 137.8 = 0.018

Answer:

C

Step-by-step explanation:

Answer:  Distrubutive Property

Step-by-step explanation:

Distrubutive Property is when you have a number, then you have an equation in parenthesis next to it.

Answer:

B is the correct answer.

Step-by-step explanation:

A key problem faced by poorer inner-city neighborhoods in America due to their geographical position is a lack of quality food options.

One of the significant challenges faced by poorer inner-city neighborhoods in America is the limited availability of quality food options, commonly referred to as "food deserts." Food deserts are areas where residents have limited access to fresh, nutritious, and affordable food. These neighborhoods often lack grocery stores, farmers markets, and other sources of healthy food, leaving residents with few choices but to rely on convenience stores and fast food outlets that predominantly offer processed and unhealthy food options.

The geographical positioning of these neighborhoods plays a crucial role in this interest. Many low-income inner-city neighborhoods are located in areas that are underserved by grocery stores and supermarkets.

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To prove a number is irrational we divide the integer by another integer is the decimal is non terminating and non repeating then it will be a irrational number .

What are Irrational Numbers ?

The Irrational numbers can be defined  a number that cannot be expressed as a fraction \(\frac{p}{q}\) for any integers p and q.

The Irrational numbers have decimal expansions that do not terminate nor repeat (periodic) . Every transcendental number is an irrational number .

(i) To prove a number irrational  when we divide an integer by another integer, and  if decimal expansion does not terminate and do not  repeat then it is an irrational .

(ii) if the number cannot be expressed in the form of \(\frac{p}{q}\) , then also the number will be called as irrational numbers .

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Hopeful this is helpful!

Step-by-step explanation:

      a. p is 20% of 190. How many pennies do you have?

p=.20 x 190=p p= 38 pennies

      b. 190 is 200% of r. How many rare coins do you have?

190/2=r   r(rare coins) = 95 rare coins

     c. n is 60% of r. How many nickels do you have?

n=.60 x 95=n n= 57 nickels

:)

Answer:

x =14, y = 38

Step-by-step explanation:

Quadrilateral JKLM is inscribed in a circle, so it is a cyclic quadrilateral.

Opposite angles of a cyclic quadrilateral are supplementary.

\(5x \degree + 110 \degree = 180 \degree \\ \\ 5x \degree = 180 \degree - 110 \degree\\ \\ 5x \degree = 70 \degree\\ \\ x = \frac{70}{5} \\ \\ x = 14 \\ \\ 2y \degree + 104 \degree = 180 \degree \\ \\ 2y \degree = 180 \degree - 104 \degree\\ \\ 2y \degree = 76 \degree \\ \\ y = \frac{76}{2} \\ \\ y = 38\)

The height of the cone in terms of y is h = y / 4.

The cylinder and the cone have the same volume. The cylinder has radius x and height y. The cone has radius 2x.

Therefore,

volume of a cylinder = πr²h

where

Volume of a cone = 1 / 3 πr²h

where

Therefore,

πr²h = 1 / 3 πr²h

πx²y = 1 / 3 π (2x)²h

πx²y = 1 / 3 π 4x² h

multiply both sides by 3

πx²y = π 4x² h

divide both sides by  π 4x²

Hence,

h = πx²y  / π 4x²

h = y / 4

Therefore, the height of the cone is h = y / 4.

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Answer:

2nd = 4ft.

1st = 16ft

Step-by-step explanation:

2nd = x

1st = 3x + 4

Piece of rope = 20ft.

(3x + 4) + x = 20

4x + 4 = 20

4x = 16

x = 4 (second piece)

First

3x + 4

3(4) + 4

12 + 4 = 16

Answer:

(8)

Step-by-step explanation:

(1+2)=

Answer: the first graph (A)

Step-by-step explanation: are you actually low IQ or intellect this is the most easiest question I have ever seen I just finished this topic in my honor math class like last month in a week. BTW I am in the 9th grade

Now I got to tutor you so here you can use the process of elimination which you can see that < without the line below it means that the line is dotted and is the only one with a y-intercept of +2 is A and D are the only ligament answer now you dumc as i can't curse due to that i will get reported, so anyways go up 2 and go 1 to the right because it is 2x which is 2/1x rise/run and it is positive which means D is wrong because it has a negative slope which the only answer for this is A now get your (can't say) together and study.

Answer:

m = \(\frac{l}{v-u}\)

Step-by-step explanation:

l = mv-mu (factor out m from mv and mu)

l = m(v-u) - (divide both sides by (v-u))

l/v-u =m

Answer:

20m

Step-by-step explanation:

total area =6*4=24m

area of the sand =2*2=4m

total area minis sand area =grass area

24-4=20m

The required decimal form of two hundred five thousandths is 0.205.

When we write a decimal number, each digit represents a different power of 10, with the digit to the left of the decimal point representing the one place, and the digits to the right of the decimal point representing fractions of a whole.

So, to represent two hundred five thousandths in decimal form, we need to write 2 in the thousandth place, which is three digits to the right of the decimal point. This gives us the number 0.205.

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Answer:

there 3x and 4y hope this makes sense ik on a rush

The 90% prediction interval for the next observed number of words per minute typed by a graduate of the secretarial school is approximately (81.10, 86.10). This means that we can be 90% confident that the true number of words per minute falls within this interval.

To compute the 90% prediction interval for the next observed number of words per minute typed by a graduate of the secretarial school, we can use the formula:

Prediction Interval = X⁻ ± t * (s / √n)

Where:

X⁻ is the sample mean (83.6 words per minute)

t is the critical value from the t-distribution corresponding to the desired confidence level (90% confidence level in this case)

s is the sample standard deviation (7.5 words per minute)

n is the sample size (18)

First, we need to find the critical value from the t-distribution. Since the sample size is relatively small (n = 18), we can refer to the table of critical values of the t-distribution.

For a 90% confidence level and degrees of freedom (n - 1) = 17, the critical value is approximately 1.740.

Now, we can calculate the prediction interval:

Prediction Interval = 83.6 ± 1.740 * (7.5 / √18)

Calculating the values, we get:

Prediction Interval ≈ 83.6 ± 2.496

Rounded to two decimal places, the 90% prediction interval is approximately (81.10, 86.10).

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Answer:

25

Step-by-step explanation:

Answer:

25 books

Step-by-step explanation:

So, we know that Kelly read 19 books.

Elyse read 6 more books than 19.

Therefore, to find the amount of books Elyse read, add 6 to 19:

\(6+19\)

Add:

\(=25\)

So, Elyse read 25 books.