The dean of a university estimates that the mean number of classroom hours per week for full-time faculty is 11.0. As a member of the student council, you want to test this claim. A random sample of the number of classroom hours for eight full-time faculty for one week is shown in the table below. At α=0.01, can you reject the dean's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. 11.6 7.3 12.9 8.9 5.9 10.6 14.3 9.2 (a) Write the claim mathematically and identify H0 and Ha. Which of the following correctly states H0 and Ha? A. H0:μ=11.0 Ha:μ≠11.0 B. H0:μ≥11.0 Ha:μ<11.0 C. H0:μ<11.0 Ha:μ≥11.0 D. H0:μ≤11.0 Ha:μ>11.0 E. H0:μ>11.0 Ha:μ≤11.0 F. H0:μ≠11.0 Ha:μ=11.0 (b) Use technology to find the P-value. P= (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Which of the following is correct? A.Fail to reject H0 because the P-value is greater thanthe significance level. B. Reject H0 because the P-value is greater than the significance level. C. Reject H0 because the P-value is less than the significance level. D. Fail to reject H0 because the P-value is less than the significance level. d) Interpret the decision in the context of the original claim.
The dean of a university estimates that the mean number of classroom hours per week for full-time faculty is 11.0. As a member of the student council, you want to test this claim. A random sample of the number of classroom hours for eight full-time faculty for one week is shown in the table below. At α=0.01, can you reject the dean's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. 11.6 7.3 12.9 8.9 5.9 10.6 14.3 9.2 (a) Write the claim mathematically and identify H0 and Ha. Which of the following correctly states H0 and Ha? A. H0:μ=11.0 Ha:μ≠11.0 B. H0:μ≥11.0 Ha:μ<11.0 C. H0:μ<11.0 Ha:μ≥11.0 D. H0:μ≤11.0 Ha:μ>11.0 E. H0:μ>11.0 Ha:μ≤11.0 F. H0:μ≠11.0 Ha:μ=11.0 (b) Use technology to find the P-value. P= (Round to three decimal places as needed.) (c) Decide whether to reject or fail to reject the null hypothesis. Which of the following is correct? A.Fail to reject H0 because the P-value is greater thanthe significance level. B. Reject H0 because the P-value is greater than the significance level. C. Reject H0 because the P-value is less than the significance level. D. Fail to reject H0 because the P-value is less than the significance level. d) Interpret the decision in the context of the original claim.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 31PPS
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Question
The dean of a university estimates that the mean number of classroom hours per week for full-time faculty is
normally distributed .
11.0.
As a member of the student council, you want to test this claim. A random sample of the number of classroom hours for eight full-time faculty for one week is shown in the table below. At
α=0.01,
can you reject the dean's claim? Complete parts (a) through (d) below. Assume the population is
11.6
|
7.3
|
12.9
|
8.9
|
5.9
|
10.6
|
14.3
|
9.2
|
|
|
(a) Write the claim mathematically and identify
H0
and
Ha.
Which of the following correctly states
H0 and Ha?
H0:μ=11.0
Ha:μ≠11.0
H0:μ≥11.0
Ha:μ<11.0
H0:μ<11.0
Ha:μ≥11.0
H0:μ≤11.0
Ha:μ>11.0
H0:μ>11.0
Ha:μ≤11.0
H0:μ≠11.0
Ha:μ=11.0
(b) Use technology to find the P-value.
P=
(Round to three decimal places as needed.)
(c) Decide whether to reject or fail to reject the null hypothesis.
Which of the following is correct?
Fail to reject H0 because the P-value is less than the significance level.
d) Interpret the decision in the context of the original claim.
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