Recall that Table 1.7 presents the satisfaction ratings for the XYZ- Box video game system that have been given by 65 randomly selected purchasers. Figure 2.15 on the next page gives the Excel output of a histogram of these satisfaction ratings.

a. Describe where the satisfaction ratings seem to be concentrated.

b. Describe and interpret the shape of the distribution of ratings.

c. Write out the eight classes used to construct this histogram.

d. Construct a cumulative frequency distribution of the satisfaction ratings using the histogram classes.

In Table 1.7

Composite Scores for the Video Game Satisfaction Rating Case TABLE 1.7 VideoGame 39 45 38 42 42 41 38 42 46 42 47 43 45 42 45 45 45 46 43 47 43 41 47 43 45 45 45 43 40 41 41 43 39 43 46 39 41 40 42 45 43 36