Question

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.

Males   Females
84   80
73   95
48   59
57   64
53   55
61   85
54   79
73   85
54   86
62   57
71   33
61   64
64   83
81   74
83   76
65   64
65   63
93   79
44   61
86   66
70   84
64   83
72   68
71   76
51   89
65   91
57   86
81   91
75   91
66   94
63   66
93   89
58   84
64   79
59   73
58   54
65   102
71   76
84   78
60   79

Construct a 90​% confidence interval of the mean pulse rate for adult females.

? bpm < μ < ? bpm

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

Construct a 90​% confidence interval of the mean pulse rate for adult males.

? bpm < μ < ? bpm

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

Compare the results.

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

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

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

D. 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.

Answer 1

The statistical software output for this problem is :

A 90​% confidence interval of the mean pulse rate for adult females is :

63.8 bpm < μ < 70.1 bpm

A 90​% confidence interval of the mean pulse rate for adult males is :

72.3 bpm < μ < 79.7 bpm

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