Question

Refer to the accompanying data set and construct a

9595​%

confidence interval estimate of the mean pulse rate of adult​ females; then do the same for adult males. Compare the results.

Click the icon to view the pulse rates for adult females and adult males.

Construct a 95​% confidence interval of the mean pulse rate for adult females.nothing

bpm<μ<bpm

bpm

​(Round to one decimal place as​ needed.)

Construct a

95%

confidence interval of the mean pulse rate for adult males.

nothing

bpmless than<muμless than<nothing

bpm

​(Round to one decimal place as​ needed.)

Compare the results.

A.

The confidence intervals​ overlap, so it appears that adult males have a significantly higher mean pulse rate than adult females.

B.

The confidence intervals do not​ overlap, so it appears that there is no significant difference in mean pulse rates between adult females and adult males.

C.

The confidence intervals​ overlap, so it appears that there is no significant difference in mean pulse rates between adult females and adult males.

D.

The confidence intervals do not​ overlap, so it appears that adult females have a significantly higher mean pulse rate than adult males.

Males	Females
81	80
71	92
51	57
60	64
50	53
59	81
52	80
76	87
52	86
61	58
71	34
61	69
67	83
78	77
82	76
64	65
69	68
94	78
44	58
88	61
74	84
65	81
70	67
70	74
53	87
66	91
58	89
82	90
72	89
64	95
64	70
98	93
59	81
67	79
59	74
57	57
66	100
67	72
85	75
56	77

Answer 1

The statistical software output for this problem is:

Hence,

95​% confidence interval of the mean pulse rate for adult females:

71.4 bpm < < 80.2 bpm

95​% confidence interval of the mean pulse rate for adult males:

63.2 bpm < < 71.0 bpm

Compare: Option D is correct.