# Question

Recall that Table 1.8 presents the waiting times for teller service during peak business hours of 100 randomly selected bank customers. Figure 2.16 on the next page gives the MINITAB output of a histogram of these waiting times that has been constructed using automatic classes.

a. Describe where the waiting times seem to be concentrated.

b. Describe and interpret the shape of the distribution of waiting times.

c. What is the class length that has been automatically defined by MINITAB?

d. Write out the automatically defined classes and construct a cumulative percent frequency distribution of the waiting times using these classes.

a. Describe where the waiting times seem to be concentrated.

b. Describe and interpret the shape of the distribution of waiting times.

c. What is the class length that has been automatically defined by MINITAB?

d. Write out the automatically defined classes and construct a cumulative percent frequency distribution of the waiting times using these classes.

## Answer to relevant Questions

Recall that Table 1.9 (page 14) presents the breaking strengths of 40 trash bags selected during a 40- hour pilot production run. Figure 2.17 gives a percent frequency histogram of these breaking strengths. a. Describe ...The following data consist of the number of students who were absent in a professor’s statistics class each day during the last month. Construct a dot plot of these data, and then describe the distribution of absences. Figure 2.22 gives a stem- and- leaf display of the sample of 40 breaking strengths in the trash bag case. a. Use the stem- and- leaf display to describe the distribution of breaking strengths. b. Write out the 10 smallest ...Consider constructing a pie chart for the exam question responses in Exercise 2.4. a. How many degrees (out of 360) would be assigned to the “pie slice” for the response (a)? b. How many degrees would be assigned to ...Develop a frequency distribution of the overall mechanical quality ratings. Describe the distribution.Post your question

0