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One sample standard deviation hypothesis test

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Reference no: EM131962204

One sample Standard Deviation Hypothesis test

Arbitron Media Research Inc. conducted a study of the iPod listening habits of men and women in New York City in the year 2010. One facet of the study involved the mean listening time. The mean listening time for men and women was 35 minutes per day with a standard deviation of the 9 minutes. A recent repeat of the study with a sample of 10 men and women provided the following data. The mean listening time remained 35 minutes, but the standard deviation of the sample was 12 minutes. At the .05 significance level, can we conclude there was an increase in the variation in the listening times for the men and women?

a   The Ho Hypothesis is                    Ho  σ   _____     _________

The H1 Hypothesis is                    H1   σ  ______     ________

b   The test being performed is a: (circle or highlight answer)

Right tail test Left tail test Two tail test  

c    The numerical value of the Chi Square test statistic is (show work)

__________

d    The p value for the test is (use computer applet, 3 decimal place precision)

___________

e    Based upon the data, What is your decision? (circle or highlight answer)

Ho      H1

Reference no: EM131962204

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