An employment information service claims the mean annual salary for senior level product engineers is $97,000. The annual salaries (in dollars) for a random sample of 16 senior level product engineers are shown in the table to the right. At α=0.01, test the claim that the mean salary is $97,000. Complete parts (a) through (e) below. Assume the population is normally distributed. Annual Salaries 100,713 96,249 93,498 112,644 82,461 74,240 77,031 80,892 102,405 76,240 103,948 103,946 91,055 82,109 85,132 110,261 part A. Identify the claim and state H0 and Ha. Part B. Find the critical values Part C. Find the standardized test statistic Part D. Decide whether to reject or fail to reject the null hypothesis. Part E. Interpret the decision in the context of the original claim.
An employment information service claims the mean annual salary for senior level product engineers is $97,000. The annual salaries (in dollars) for a random sample of 16 senior level product engineers are shown in the table to the right. At α=0.01, test the claim that the mean salary is $97,000. Complete parts (a) through (e) below. Assume the population is normally distributed. Annual Salaries 100,713 96,249 93,498 112,644 82,461 74,240 77,031 80,892 102,405 76,240 103,948 103,946 91,055 82,109 85,132 110,261 part A. Identify the claim and state H0 and Ha. Part B. Find the critical values Part C. Find the standardized test statistic Part D. Decide whether to reject or fail to reject the null hypothesis. Part E. 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
Section10.1: Measures Of Center
Problem 9PPS
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An employment information service claims the $97,000. The annual salaries (in dollars) for a random sample of 16 senior level product engineers are shown in the table to the right. At α=0.01,
test the claim that the mean salary is
$97,000. Complete parts (a) through (e) below. Assume the population is
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Annual Salaries
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100,713
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96,249 | 93,498 |
112,644
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82,461
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74,240
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77,031 |
80,892
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102,405
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76,240
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103,948 |
103,946
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91,055
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82,109
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85,132 |
110,261
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part A. Identify the claim and state H0 and Ha.
Part B. Find the critical values
Part C. Find the standardized test statistic
Part D. Decide whether to reject or fail to reject the null hypothesis.
Part E. Interpret the decision in the context of the original claim.
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