González Industries requires its sales personnel to keep trackof their weekly contacts with customers. A sample of 16 reportsshowed a mean of 32.4 customer contacts per week for the salespersonnel, and a sample standard deviation of 5.7 contacts.Assuming customer contacts is a normally distributed variable,generate a 95% confidence interval estimate of the true mean numberof customer contacts per week at González Industries. Begin bystating whether this estimation problem should use the student tdistribution or the normal (Z) distribution. Should the tdistribution be used?
If you indicated the t distribution should be used, give thevalue that should be used here. If you said, \"no\", then indicatewhich Z value should be used.
What is the lower limit of the confidence interval?
What is the upper limit of the confidence interval?
