Determine Whether the Samples Are Independent or Dependent Construct a 98% Confidence Interval For

question 9

Multiple Choice

Determine whether the samples are independent or dependent.
-A researcher was interested in comparing the salaries of female and male employees at a particular company. Independent simple random samples of 8 female employees and 15 male employees yielded the following
Weekly salaries (in dollars) . $$\begin{array} { r | r r } \text { Female } & \text { Male } & \\\hline 495 & 722 & 518 \\760 & 562 & 904 \\556 & 880 & 1150 \\904 & 520 & 805 \\520 & 500 & 480 \\1005 & 1250 & 970 \\743 & 750 & 605 \\660 & 1640 &\end{array}$$
Construct a 98% confidence interval for $\mu _ { 1 } - \mu _ { 2 }$ the difference between the mean weekly salary of female Employees and the mean weekly salary of male employees at the company. $\left( \text { Note: } \bar { x } _ { 1 } = \$ 705.38 , \bar { x } _ { 2 } = \$ 817.07 , \mathrm {~s} _ { 1 } = \$ 183.86 , \mathrm {~s} 2 = \$ 330.15 . \right)$

• A) \(- \$ 385 < \mu _ { 1 } - \mu _ { 2 } < \$ 164\)
• B) \(- \$ 431 < \mu _ { 1 } - \mu _ { 2 } < \$ 208\)
• C) \(- \$ 383 < \mu _ { 1 } - \mu _ { 2 } < \$ 159\)
• D) \(- \$ 382 < \mu _ { 1 } - \mu _ { 2 } < \$ 158\)

Understand the physiological basis of motivation, including mechanisms like homeostasis.

Appreciate the importance of motivation in achieving personal goals and engaging in goal-directed behavior.

Understand different research methods used in marketing and how they contribute to collecting primary and secondary data.

Identify and explain various sampling techniques and their importance in marketing research.