The researcher selects a sample of patients from the population of interest. The data below represents the ages of patients enrolled in the study. Use this data to answer questions 2-6.
46
62
53
53
32
53
45
47
69
34
50
64
42
57
39
45
33
75
45
46
53
53
29
50
37
34
36
43
45
31
35
41
1. Construct the frequency distribution of patient ages. Group the data by 5's, i.e. 20-24, 25-29, etc. Be sure to include frequency, percent a.k.a. relative frequency, cumulative frequency, and cumulative percent.
2. Calculate the following summary statistics: mean, variance, standard deviation, minimum, median, maximum, range.
3. Describe the age of patients in the study by discussing the following characteristics: modality (unimodal, bimodal, etc), skew, shape, location, outliers, spread. Compare the distribution of the age of patients to the characteristics of a normal curve.
4. Create the following graphs from the data: Stem and Leaf Plot, Histogram (with a bin width = 5), Pie Chart (group the ages by 10s, i.e. 20-29, 30-39, etc etc, for the Pie Chart only).