Question

Listed below are pulse rates (beats per minute) from samples of adult males and females. Does there appear to be a difference? Find the coefficient of variation for each of the two samples; then compare the variation.

Male |
88 |
---|

68

60

71

72

54

65

55

83

72

61

60

97

58

66

Female |
66 |
---|

80

80

70

74

84

87

84

86

87

91

71

90

82

79

Answer #1

Listed below are pulse rates (beats per minute) from samples of
adult males and females. Does there appear to be a difference? Find
the coefficient of variation for each of the two samples; then
compare the variation.
Male
Female
86
65
71
83
64
80
72
71
71
76
51
82
65
88
56
87
83
89
68
89
60
92
60
68
99
90
58
78
66
78

use the pulses rates in beats per minute bpm of a
random sample of adult females listed in the data set available
below to test the claim that the mean is less then 73 bpm. use a
0.10 significance level.
pules rate 102 89 78 64 47 61 62 61 74 101 69 84 61
100 38 82 88 74 79 65 59 79 87 60 86 86 51 48 86 88 60 51 58 65 105
92 50 39...

Refer to the accompanying data set and construct a 95%
confidence interval estimate of the mean pulse rate of adult
females; then do the same for adult males. Compare the results.
Males Females
81
82
72
94
52
57
59
66
51
54
62
80
52
77
74
85
51
89
62
57
73
35
61
64
62
87
80
74
80
79
63
62
63
67
97
76
43
60
85
65
72
86
66
85
73
69
72 ...

Use the pulse rates in beats per minute (bpm) of a random
sample of adult females listed in the data set available below to
test the claim that the mean is less than 77 bpm. Use a
0.01significance level
Click the icon to view the pulse rate data.
59 38
95 92
105 90
81 94
77 78
101 69
47 45
78 90
80 104
75 87
63 61
66 48
35 54
49 39
90 35
97 92...

Use the pulse rates in beats per minute (bpm) of a random sample
of adult females listed in the data set available below to test the
claim that the mean is less than 70 bpm. Use a 0.05 significance
level.
What are the null and alternative hypotheses?
Pulse Rates (bpm)
59
98
82
65
42
104
37
67
79
82
73
69
60
104
38
44
36
41
103
59
54
72
58
62
76
36
54
63
103
70...

Refer to the accompanying data set and construct a 90%
confidence interval estimate of the mean pulse rate of adult
females; then do the same for adult males. Compare the results.
LOADING... Click the icon to view the pulse rates for adult females
and adult males. Construct a 90% confidence interval of the mean
pulse rate for adult females. nothing bpm less than < mu μ less
than < nothing bpm (Round to one decimal place as needed.)
Construct a...

8.
Use the pulse rates in beats per minute (bpm) of a random
sample of adult females listed in the data set available below to
test the claim that the mean is less than76
bpm. Use a 0.10 significance level.
Pulse Rate (bpm)
85
58
65
87
85
98
97
101
74
64
40
99
67
68
100
64
100
68
44
60
61
36
56
96
89
68
40
82
51
44
35
77
72
71
101
79
89...

Student Grades
Student
Test
Grade
1
76
62
2
84
90
3
79
68
4
88
84
5
76
58
6
66
79
7
75
73
8
94
93
9
66
65
10
92
86
11
80
53
12
87
83
13
86
49
14
63
72
15
92
87
16
75
89
17
69
81
18
92
94
19
79
78
20
60
71
21
68
84
22
71
74
23
61
74
24
68
54
25
76
97...

Table #7.3.7contains pulse rates after running for 1 minute,
collected from females who drink alcohol ("Pulse rates before,"
2013). The mean pulse rate after running for 1 minute of females
who do not drinkis 97 beats per minute. Do the data show that the
mean pulse rate of females who do drink alcohol is higher than the
mean pulse rate of females who do not drink? Test at the 5%
level.
176
160
120
72
60
74
150
120
120...

6.
Use the pulse rates in beats per minute (bpm) of a random
sample of adult females listed in the data set available below to
test the claim that the mean is less than 78 bpm. Use a 0.10
significance level.
Pulse Rate (bpm)
102
102
36
100
72
52
46
71
83
87
50
58
36
46
52
94
39
65
40
101
76
65
89
67
99
51
70
44
76
77
57
102
87
79
41
95...

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