a. H.: ;H: ; circle one: left-tail, right-tail, two-tail ;a = b. circle one: Normal or Student's t; z,= C. Z= d. P-value = e. circle one: Reject, Fail to Reject

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Mo..
> Tatin dictor
For questions 1-3, provide:
a. Null and alternate hypotheses; level of significance; and left-tail, right-tail or two-tailed test.
b. What sampling distribution will you use? What is the critical value of zo?
c. Calculate the z value corresponding to the sample statistic.
d. Find the P value of the sample.
e. Based on your answers, shall we reject or fail to reject the null hypothesis?
1. The average annual miles driven per vehicle in the U.S. is 11.1 thousand. Suppose that a
random sample of 36 vehicles owned by residents of Chicago showed that the average mileage
driven last year was 10.8 thousand with a standard deviation of 600 miles. Does this indicate
that the average miles driven in Chicago is different than the national average? Use a 05 level
of significance.
a. Ho:
;H:
;a%3D
circle one: left-tail, right-tail, two-tail
b. circle one: Normal or Student's t; z, =
C. z=
d. P-value =
e. circle one: Reject, Fail to Reject
elissa
2. The Fleetfoot Shoe Company claims that the average yearly salary of its workers is $29,800.
The union believes that the average salary is much less. A random sample of 64 employees
shows their average salary to be $29,000 with a standard deviation of $800. Us https://classroom.google.com/u/0/c/MTUXNJUYO
n
Transcribed Image Text:Mo.. > Tatin dictor For questions 1-3, provide: a. Null and alternate hypotheses; level of significance; and left-tail, right-tail or two-tailed test. b. What sampling distribution will you use? What is the critical value of zo? c. Calculate the z value corresponding to the sample statistic. d. Find the P value of the sample. e. Based on your answers, shall we reject or fail to reject the null hypothesis? 1. The average annual miles driven per vehicle in the U.S. is 11.1 thousand. Suppose that a random sample of 36 vehicles owned by residents of Chicago showed that the average mileage driven last year was 10.8 thousand with a standard deviation of 600 miles. Does this indicate that the average miles driven in Chicago is different than the national average? Use a 05 level of significance. a. Ho: ;H: ;a%3D circle one: left-tail, right-tail, two-tail b. circle one: Normal or Student's t; z, = C. z= d. P-value = e. circle one: Reject, Fail to Reject elissa 2. The Fleetfoot Shoe Company claims that the average yearly salary of its workers is $29,800. The union believes that the average salary is much less. A random sample of 64 employees shows their average salary to be $29,000 with a standard deviation of $800. Us https://classroom.google.com/u/0/c/MTUXNJUYO n
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