EBK PRACTICE OF STATISTICS IN THE LIFE
4th Edition
ISBN: 9781319067496
Author: BALDI
Publisher: VST
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Chapter 22, Problem 22.32E
To determine
To find the significant evidence of relationship.
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Students have asked these similar questions
=
Consider the hypothesis test Ho: μ₁ = μ₂ against H₁ μ₁ μ2. Suppose that sample sizes are n₁ =
15 and n₂ =
15, that x1 = 4.7
and X2 = 7.8 and that s² = 4 and s² = 6.26. Assume that o and that the data are drawn from normal distributions. Use
απ 0.05.
(a) Test the hypothesis and find the P-value.
(b) What is the power of the test in part (a) for a true difference in means of 3?
(c) Assuming equal sample sizes, what sample size should be used to obtain ẞ = 0.05 if the true difference in means is - 2? Assume
that α = 0.05.
(a) The null hypothesis is
98.7654).
rejected. The P-value is 0.0008
(b) The power is 0.94
. Round your answer to four decimal places (e.g.
Round your answer to two decimal places (e.g. 98.76).
(c) n₁ = n2 =
1
. Round your answer to the nearest integer.
Consider the hypothesis test Ho:
=
622 against H₁: 6 > 62. Suppose that the sample sizes are n₁ =
20 and n₂ =
8, and that
=
4.5; s=2.3. Use a = 0.01.
(a) Test the hypothesis.
Round your answers to two decimal places (e.g. 98.76).
The test statistic is fo
=
i
The critical value is f =
Conclusion:
i
the null hypothesis at a = 0.01.
(b) Construct the confidence interval on 02/022 which can be used to test the hypothesis:
(Round your answer to two decimal places (e.g. 98.76).)
i
2011 listing by carmax
of the ages and prices of various corollas in a ceratin region
Chapter 22 Solutions
EBK PRACTICE OF STATISTICS IN THE LIFE
Ch. 22 - Prob. 22.1AYKCh. 22 - Prob. 22.2AYKCh. 22 - Prob. 22.3AYKCh. 22 - Prob. 22.4AYKCh. 22 - Prob. 22.5AYKCh. 22 - Prob. 22.6AYKCh. 22 - Prob. 22.7AYKCh. 22 - Prob. 22.8AYKCh. 22 - Prob. 22.9AYKCh. 22 - Prob. 22.10AYK
Ch. 22 - Prob. 22.11AYKCh. 22 - Prob. 22.12AYKCh. 22 - Prob. 22.13CYSCh. 22 - Prob. 22.14CYSCh. 22 - Prob. 22.15CYSCh. 22 - Prob. 22.16CYSCh. 22 - Prob. 22.17CYSCh. 22 - Prob. 22.18CYSCh. 22 - Prob. 22.19CYSCh. 22 - Prob. 22.20CYSCh. 22 - Prob. 22.21CYSCh. 22 - Prob. 22.22CYSCh. 22 - Prob. 22.23ECh. 22 - Prob. 22.24ECh. 22 - Prob. 22.25ECh. 22 - Prob. 22.26ECh. 22 - Prob. 22.27ECh. 22 - Prob. 22.28ECh. 22 - Prob. 22.29ECh. 22 - Prob. 22.30ECh. 22 - Prob. 22.31ECh. 22 - Prob. 22.32ECh. 22 - Prob. 22.33ECh. 22 - Prob. 22.34ECh. 22 - Prob. 22.35ECh. 22 - Prob. 22.36ECh. 22 - Prob. 22.37ECh. 22 - Prob. 22.38ECh. 22 - Prob. 22.39ECh. 22 - Prob. 22.40E
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