A Marketing Consultant Is Studying the Perceptions of Married Couples

question 34

Essay

A marketing consultant is studying the perceptions of married couples concerning their weekly food expenditures. He believes that the husband's perception would be higher than the wife's. To judge his belief, he takes a random sample of 10 married couples and asks each spouse to estimate the family food expenditure (in dollars) during the previous week. The data are shown below. $$\begin{array} { | c | c | c | } \hline \text { Couple } & \text { Husband } & \text { Wife } \\\hline 1 & 380 & 270 \\\hline 2 & 280 & 300 \\\hline 3 & 215 & 185 \\\hline 4 & 350 & 320 \\\hline 5 & 210 & 180 \\\hline 6 & 410 & 390 \\\hline 7 & 250 & 250 \\\hline 8 & 360 & 320 \\\hline 9 & 180 & 170 \\\hline 10 & 400 & 330 \\\hline\end{array}$$ Can the consultant conclude at the 5% significance level that the husband's estimate is higher than the wife's estimate?

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Definitions:

Body Portions

Different sections or parts of the human body, each serving specific functions in the overall physiology and anatomy of the individual.

Parietal Pericardium

The outer layer of the pericardium, a sac that encloses the heart, providing protection against infection and physical damage.

Serous Membrane

A thin tissue that lines certain internal cavities of the body, producing a serous fluid for lubrication.

Pericardial Sac

A double-layered membrane enclosing the heart, providing lubrication and protection against friction.