For the data in Exercise 13.1, create a scatterplot and calculate the correlation between husband’s

and wife’s sexual satisfaction. How does this amplify what we have learned from the

analysis in Exercise 13.1? (For example, in R the commands would be plot(wife ~ Husband)

and cor (Wife, Husband.))

Exercise 13.1

Hout, Duncan, and Sobel (1987) reported on the relative sexual satisfaction of married couples.

They asked each member of 91 married couples to rate the degree to which they agreed

with “Sex is fun for me and my partner” on a four-point scale ranging from “never or occasionally”

to “almost always.” The data appear below (I know it’s a lot of data, but it’s an interesting

question, and the data can always be downloaded from the book’s website.):

Start out by running a matched-sample t test on these data. Why is a matched-sample test
appropriate?

- - - Wife Husband Wife II 2 2 2 2 2 2 2 3 ||||222 2 2 2 2 2 2 2 2 3 4 4 4 1 1 2 2 2 2 2 2 2 2 3 Husband 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 1 222 22 Husband Wife Husband Wife 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 3 3 3 3 4 4 4 4 4 4 4 4 411 Husband 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Wife 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 Husband 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Wife 3 3 4 4 4 4 4 4 4 4 4 4 4 4 4 4