In a study of the accuracy of fast food​ drive-through orders, one restaurant had 31 orders that were not accurate among 390 orders observed. Use a 0.01 significance level to test the claim that the rate of inaccurate orders is equal to​ 10%. Does the accuracy rate appear to be​ acceptable?   - Identify the null and alternative hypotheses for this test.   - Identify the test statistic for this hypothesis test. The test statistic for this hypothesis test is     The​ P-value for this hypothesis test is ​(Round to three decimal places as​ needed.)     - Identify the conclusion for this hypothesis test. A. Fail to reject H0. There is sufficient evidence to warrant rejection of the claim that the rate of inaccurate orders is equal to​ 10%.   B. Reject H0. There is not sufficient evidence to warrant rejection of the claim that the rate of inaccurate orders is equal to​ 10%.   C. Reject H0. There is sufficient evidence to warrant rejection of the claim that the rate of inaccurate orders is equal to​ 10%.   D. Fail to reject H0. There is not sufficient evidence to warrant rejection of the claim that the rate of inaccurate orders is equal to​ 10%.   - Does the accuracy rate appear to be​ acceptable? A. Since there is not sufficient evidence to reject the claim that the rate of inaccurate orders is equal to​10%, the restaurant should work to increase that rate.   B. Since there is sufficient evidence to reject the claim that the rate of inaccurate orders is equal to​ 10%, the inaccuracy rate is​ unacceptable, so the restaurant should work to lower that rate.   C. Since there is not sufficient evidence to reject the claim that the rate of inaccurate orders is equal to​10%, it is plausible that the inaccuracy rate is ​10%. This rate would be too high​, so the restaurant should work to lower the rate.   D. Since there is sufficient evidence to reject the claim that the rate of inaccurate orders is equal to​ 10%, the inaccuracy rate is acceptable.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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In a study of the accuracy of fast food​ drive-through orders, one restaurant had

31

orders that were not accurate among

390

orders observed. Use a

0.01

significance level to test the claim that the rate of inaccurate orders is equal to​ 10%. Does the accuracy rate appear to be​ acceptable?

 

- Identify the null and alternative hypotheses for this test.

 

- Identify the test statistic for this hypothesis test.
The test statistic for this hypothesis test is
 
 
The​ P-value for this hypothesis test is
​(Round to three decimal places as​ needed.)
 
 
- Identify the conclusion for this hypothesis test.
A.
Fail to reject
H0.
There
is
sufficient evidence to warrant rejection of the claim that the rate of inaccurate orders is equal to​ 10%.
 
B.
Reject
H0.
There
is not
sufficient evidence to warrant rejection of the claim that the rate of inaccurate orders is equal to​ 10%.
 
C.
Reject
H0.
There
is
sufficient evidence to warrant rejection of the claim that the rate of inaccurate orders is equal to​ 10%.
 
D.
Fail to reject
H0.
There
is not
sufficient evidence to warrant rejection of the claim that the rate of inaccurate orders is equal to​ 10%.
 
- Does the accuracy rate appear to be​ acceptable?
A.
Since there
is not
sufficient evidence to reject the claim that the rate of inaccurate orders is equal to​10%, the restaurant should work to increase that rate.
 
B.
Since there
is
sufficient evidence to reject the claim that the rate of inaccurate orders is equal to​ 10%, the inaccuracy rate is​ unacceptable, so the restaurant should work to lower that rate.
 
C.
Since there
is not
sufficient evidence to reject the claim that the rate of inaccurate orders is equal to​10%, it is plausible that the inaccuracy rate
is
​10%.
This rate would be too high​,
so the restaurant should work to lower the rate.
 
D.
Since there
is
sufficient evidence to reject the claim that the rate of inaccurate orders is equal to​ 10%, the inaccuracy rate is acceptable.
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