1. The following data represent glucose blood levels (mg/100 ml) after a 12-hour fast for a random sample of 40 women.
80
|
84
|
77
|
65
|
46
|
80
|
70
|
75
|
45
|
101
|
71
|
109
|
73
|
73
|
80
|
72
|
81
|
63
|
74
|
45
|
66
|
83
|
71
|
76
|
64
|
59
|
59
|
76
|
82
|
80
|
81
|
85
|
77
|
82
|
90
|
87
|
72
|
79
|
69
|
83
|
a. Make astem-and-leaf display of the glucose blood levels distribution. (10 points)
Use
seven
classes to answer parts b, c, and d.
b. Find the class width and the upper and lower class limits. (10 points)
c. Make a frequency table showing frequencies
and
relative frequencies. (10 points)
d. Based on your answer to part c, which is the most likely range of glucose blood levels for women after a 12-hour fast? (10 points)
e. Make a histogram showing class boundaries. (10 points)
2. Driving under the influence of alcohol (DUI) is a serious offense. The following data give the ages of a random sample of 50 drivers arrested while driving under the influence of alcohol.
46 16 41 26 22 33 30 22 36 34
63 21 26 18 27 24 31 38 26 55
31 47 27 43 35 22 64 40 58 20
49 37 53 25 29 32 23 49 39 40
24 56 30 51 21 45 27 34 47 35
a. Make a stem-and-leaf display of the age distribution. (10 points)
Use
seven
classes to answer parts b, c, and d.
b. Find the class width and the upper and lower class limits. (10 points)
c. Make a frequency table showing frequencies
and
relative frequencies. (10 points)
d. Based on your answer to part c, which is the most likely age range of a driver arrested while driving under the influence. (10 points)
Make a histogram showing class boundaries. (10 poin