a. At the 0.05 level of significance, is there evidence of a difference between o and o3? Determine the hypotheses. Choose the correct answer below. O A. Ho of =03 O B. Ho of so? O C. Hoi o z3 O D. Ho of #o3 Use technology to find the test statistic, FSTAT FSTAT = (Round to two decimal places as needed.) Use technology to determine the p-value. p-value = (Round to three decimal places as needed.) Reach a decision. V Họ. There is V evidence of a difference between of and o. b. Suppose that you want to perform a one-tail test. At the 0.05 level of significance, what is the upper-tail critical value of F to determine whether there is evidence that o > o5? What is your statistical deci The upper-tail critical value of F is (Round to two decimal places as needed.) What is your statistical decision? V Họ. There is V evidence that of > a3.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
The following information is available for two samples selected from independent normally distributed populations. Complete parts (a) and (b).
s? = 57.3
s2 = 20.6
Population A:
n= 13
Population B:
n= 21
a. At the 0.05 level of significance, is there evidence of a difference between of and o3?
Determine the hypotheses. Choose the correct answer below.
O A. Ho of = 03
O B. Ho, o7 so?
O D. Ho; o7 +o3
OC. Họ; o7 203
H,: of <o3
Use technology to find the test statistic, FSTAT-
FSTAT = (Round to two decimal places as needed.)
Use technology to determine the p-value.
p-value =
(Round to three decimal places as needed.)
Reach a decision.
V Ho. There is
evidence of a difference between of and os
b. Suppose that you want to perform a one-tail test. At the 0.05 level of significance, what is the upper-tail critical value of F to determine whether there is evidence that o > o?? What is your statistical decision?
The upper-tail critical value of F is
(Round to two decimal places as needed.)
What is your statistical decision?
V Ho. There is
V evidence that o? >o3.
Transcribed Image Text:The following information is available for two samples selected from independent normally distributed populations. Complete parts (a) and (b). s? = 57.3 s2 = 20.6 Population A: n= 13 Population B: n= 21 a. At the 0.05 level of significance, is there evidence of a difference between of and o3? Determine the hypotheses. Choose the correct answer below. O A. Ho of = 03 O B. Ho, o7 so? O D. Ho; o7 +o3 OC. Họ; o7 203 H,: of <o3 Use technology to find the test statistic, FSTAT- FSTAT = (Round to two decimal places as needed.) Use technology to determine the p-value. p-value = (Round to three decimal places as needed.) Reach a decision. V Ho. There is evidence of a difference between of and os b. Suppose that you want to perform a one-tail test. At the 0.05 level of significance, what is the upper-tail critical value of F to determine whether there is evidence that o > o?? What is your statistical decision? The upper-tail critical value of F is (Round to two decimal places as needed.) What is your statistical decision? V Ho. There is V evidence that o? >o3.
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