he scandaru deviation för the sample was 10 minutes. Answer the questions below to construct a 90% confidence interval about the population mean, u. Assume that student commute times are nc mally...

How long is your commute to school? Random sample 16 students, the mean commute time was 33 minutes. Answer the questions below to construct a 90% confidence interval about the population mean

Extracted text: he scandaru deviation för the sample was 10 minutes. Answer the questions below to construct a 90% confidence interval about the population mean, u. Assume that student commute times are nc mally distributed. (a) What are the values for the following variables? • T= S%3= • (degrees of freedom) df = (b) What is the critical value, Te corresponding to a 90% confidence level? (c) Compute the margin of error, Te (d) Write out a 90% confidence interval about u. (e) Fill in the blanks to interpret the confidence interval. We are % confident that lies between and 近