In Exercise 6.1-3, measurements for 96 plungers are given. Use those measurements to (a)

Chapter 6, Problem 6.2-1

(choose chapter or problem)

In Exercise 6.1-3, measurements for 96 plungers are given. Use those measurements to

(a) Construct a stem-and-leaf diagram using integer stems.

(b) Find the five-number summary of the data.

(c) Construct a box-and-whisker diagram. Are there any outliers?

Exercise 6.1-3

During the course of an internship at a company that manufactures diesel engine fuel injector pumps, a student had to measure the category “plungers that force the fuel out of the pumps.” This category is based on a relative scale, measuring the difference in diameter (in microns or micrometers) of a plunger from that of an absolute minimum acceptable diameter. For 96 plungers randomly taken from the production line, the data are as follows:

               

(a) Calculate the sample mean and the sample standard deviation of these measurements.

(b) Use the class boundaries 10.95, 11.95, . . . , 22.95 to construct a histogram of the data.