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An Analyst wants to know if there was a significance difference in the average of hours...

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Basic Math

An Analyst wants to know if there was a significance differencein the average of hours worked in a week from 2000 (Group 1) to2004 (Group 2). He gathers all the data from the General SocialSurvey, and lists the following summary statistics from thesampling.

Year

2000

2004

Mean

27.34

48.12

Std. Dev

10.11

19.23

Unweighted n

43

54

Source: General Social Survey (sda.berkeley.edu )

What is the correct null hypothesis?

Ho: mu2004-mu2000 < 0

Ho: mu2004-mu2000 does not equal 0

Ho: mu2000-mu2004 > 0

Ho: mu2004-mu2000 = 0

Answer & Explanation Solved by verified expert
4.2 Ratings (655 Votes)
SolutionNull and alternative hypothesis are Ho Ha This corresponds to a    See Answer
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