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Determine Whether the Samples Are Independent or Dependent Use a 005 Significance Level to Test the Claim That the Mean

Question 115

Essay

Determine whether the samples are independent or dependent.
-A researcher was interested in comparing the amount of time (in hours) spent watching television by women
and by men. Independent simple random samples of 14 women and 17 men were selected, and each person was
asked how many hours he or she had watched television during the previous week. The summary statistics are
as follows.  Women  Men x1=12.5hrx2=13.8hrs1=3.9hrs2=5.2hrn1=14n2=17\begin{array} { | l | l | } \hline \text { Women } & \text { Men } \\\overline { \mathrm { x } } _ { 1 } = 12.5 \mathrm { hr } & \overline { \mathrm { x } } _ { 2 } = 13.8 \mathrm { hr } \\\mathrm { s } _ { 1 } = 3.9 \mathrm { hr } & \mathrm { s } _ { 2 } = 5.2 \mathrm { hr } \\\mathrm { n } _ { 1 } = 14 & \mathrm { n } _ { 2 } = 17 \\\hline\end{array} Use a 0.05 significance level to test the claim that the mean amount of time spent watching television by women
is smaller than the mean amount of time spent watching television by men. Use the traditional method of
hypothesis testing.

Correct Answer:

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Do not reject H0. At the 5% significance...

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