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Category > Statistics Posted 09 May 2017 My Price 4.00

Suppose two samples representative of the study

A new study has found that, on average, 6- to 12-year-old children are spending less time on household chores today compared to 1981 levels (The Wall Street Journal, August 27, 2008). Suppose two samples representative of the study's results report the following summary statistics for the two periods:

a. Specify the competing hypotheses to test the study's claim that children today spend less time on household chores as compared to children in 1981.

b. Calculate t h e value of the test statistic assuming that the unknown population variances are equal.

c. Approximate the p -value.

d. At the 5% significance level, do the data support the study's claim? Explain. e. Repeat the hypothesis test using the critical value approach.

 

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Alpha Geek
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Status NEW Posted 09 May 2017 01:05 PM My Price 4.00

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file 1494338094-Answer.docx preview (161 words )
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