Determine Whether the Samples Are Independent or Dependent Construct a 99% Confidence Interval for µ1 - µ2, the Was

question 79

Multiple Choice

Determine whether the samples are independent or dependent.
-A researcher was interested in comparing the amount of time 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. $$\begin{array} { | l | l | } \hline \text { Women } & \text { Men } \\\hline \overline { \mathrm { x } } _ { 1 } = 12.6 \mathrm { hrs } & \overline { \mathrm { x } } _ { 2 } = 14.0 \mathrm { hrs } \\\mathrm { s } _ { 1 } = 3.9 \mathrm { hrs } & \mathrm { s } _ { 2 } = 5.2 \mathrm { hrs } \\\mathrm { n } _ { 1 } = 14 & \mathrm { n } _ { 2 } = 17 \\\hline\end{array}$$ Construct a 99% confidence interval for µ1 - µ2, the difference between the mean amount of time spent Watching television for women and the mean amount of time spent watching television for men.

• A) \(- 6.04 \mathrm { hrs } < \mu _ { 1 } - \mu _ { 2 } < 3.24 \mathrm { hrs }\)
• B) \(- 5.91 \mathrm { hrs } < \mu _ { 1 } - \mu _ { 2 } < 3.11 \mathrm { hrs }\)
• C) \(- 5.92 \mathrm { hrs } < \mu _ { 1 } - \mu _ { 2 } < 3.12 \mathrm { hrs }\)
• D) \(- 6.05 \mathrm { hrs } < \mu _ { 1 } - \mu _ { 2 } < 3.25 \mathrm { hrs }\)

Determine the optimal placement of visuals in relation to the text they illustrate.

Explain the importance of integrating visuals and text in business documents.

Describe the functions and types of titles in visuals.

Understand the significance of considering the reader's needs in the word-illustration balance.

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