Examine the sample data in the accompanying table. a. Construct a stem-and-leaf plot to assess whether the

Question:

Examine the sample data in the accompanying table.

a. Construct a stem-and-leaf plot to assess whether the data are from an approximately normal distribution.
b. Compute 5 for the sample data.
c. Find the values of QL and QU and the value of s from part b to assess whether the data come from an approximately normal distribution.
d. Generate a normal probability plot for the data and use it to assess whether the data are approximately normal.