A sample of college students was taken, and their ages were recorded. The following MINITAB output presents
Question:
A sample of college students was taken, and their ages were recorded. The following MINITAB output presents a confidence interval for the population mean age.
a. How many degrees of freedom are there?
b. If the population were not approximately normal, would this confidence interval be valid? Explain.
c. Find the critical value tα∕2 for a 95% confidence interval.
d. Use the critical value and the information in the output to construct a 95% confidence interval.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Related Book For
Question Posted: