Question: The district manager of a suburban park and recreation area wants to estimate the amount of time people spend in their local park in July. A random sample of 30 local residents gave the following information on the estimated number of hours they spent in the regional park during the month of July:

8 5 9 12 15 18

2 8 6 10 13 14

21 2 4 3 7 7

19 11 3 3 8 4

6 6 7 8 6 12

A. Find the class width if the chart is to have seven classes. Don’t forget to write the

formula, show your work, and state the answer.

B. Create the frequency table that would condense the above data values into seven classes

below using 2 as the lower class limit of the first class.

C. Construct a histogram from the frequency table created in 22 B.

D. Construct a frequency polygon from the frequency table in 22 B.

E. Construct an Ogive graph from the frequency table in 22 B.

F. Construct a stem-leaf display from the raw data given in problem 22.