A study was conducted in 2017 examining the relationship between alcohol and

spousal violence using a sample of male parolees

(n = 18).

One of the first objectives

of the study was to assess the extent of alcohol problems in the parolees' lives. To do

this, parolees were asked 20 questions relating to alcohol dependence ( e.g., "Do

friends or family members tell you that you drink too much?" "Have you wanted to

stop drinking but couldn't?"). Based on these questions, these investigators

constructed an index measured at the interval/ratio level to quantify the extent of

drinking problems in each parolee's life. For the sample, the mean number of alcohol

problems obtained from this index 7.09 problems with a sample standard deviation of

6.11 problems.

Construct a 95% confidence interval around the estimated mean

number of alcohol problems obtained from this sample.

(4 points)