7. The average salary of North Carolina is reported to be $50,781. After completing a survey of 120 North Carolinians, you find that the sample shows a mean of $51,203 with a standard deviation of $2,409. With a significance level of 0.01, conduct a hypothesis test to test the claim that the average salary of all North Carolinians is greater than $50,781. (Be sure to show all steps of the hypothesis test)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 1GP
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I need help answering number 7
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B. Do you think Holocaust education should be required in NC middle and high
schools? Why or why not?
7. The average salary of North Carolina is reported to be $50,781. After completing a
survey of 120 North Carolinians, you find that the sample shows a mean of $51,203 with
a standard deviation of $2,409. With a significance level of 0.01, conduct a hypothesis
test to test the claim that the average salary of all North Carolinians is greater than
$50,781. (Be sure to show all steps of the hypothesis test)
8. The average amount of time boys and girls ages 7 through 11 spend playing sports each
day is believed to be the same. An experiment is done, data is collected, resulting in the
data below:
Sample Size Average Number of Hours Playing Sports Per Day
EFocus
MacBook Air
Transcribed Image Text:AaBbCcDdEe AaBbCcDc AaBbCcDdEA Normal No Spacing Heading 1 Heading 2 B. Do you think Holocaust education should be required in NC middle and high schools? Why or why not? 7. The average salary of North Carolina is reported to be $50,781. After completing a survey of 120 North Carolinians, you find that the sample shows a mean of $51,203 with a standard deviation of $2,409. With a significance level of 0.01, conduct a hypothesis test to test the claim that the average salary of all North Carolinians is greater than $50,781. (Be sure to show all steps of the hypothesis test) 8. The average amount of time boys and girls ages 7 through 11 spend playing sports each day is believed to be the same. An experiment is done, data is collected, resulting in the data below: Sample Size Average Number of Hours Playing Sports Per Day EFocus MacBook Air
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