Question: Variable description:

WaitRestauA: Wait time at restaurant A

WaitRestauB: Wait time at restaurant B

WaitRestauC: Wait time at restaurant C

The manager of three steak restaurants would like to know if there is a difference in the length of time that a customer has to wait on Saturday evening to be seated. Data are recorded over a 24-week period and the average wait time per customer on a Saturday evening is recorded. Times are recorded in minutes.

a. Determine if there is sufficient evidence to conclude that a difference in waiting time exists among the three restaurants using a significance level of 5%.

b. Determine if there is a difference based on week using a significance level of 5%.

c. Which pairs of restaurants have different waiting times at a 5% significance level?

d. Provide an executive summary of above results.