A restaurant is planning its staffing for weekday dinners.It finds that the number of customers is normally distributed.Which calculation would help them determine the most likely range of customers arriving for that meal?

choices...

Regression with number of customers as an independent variable

Hypothesis testing with a null hypothesis that the number of customers is more than the usual number

Regression with number of customers as the dependent variable

Hypothesis testing with a null hypothesis that the number of customers is less than or equal to the usual number

Use a confidence interval for the number of customers as the mean