Question

# Refer to the accompanying data set and construct a 9595​% confidence interval estimate of the mean...

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

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.

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