A physician wants to develop criteria for determining whether a patient\'s pulse

Question

A physician wants to develop criteria for determining whether a patient's pulse rate is atypical, and she wants to determine whether there are significant differences between males and females. Use the sample pulse rates below.

Male 96 88 84 56 68 64 56 76 88 76

Female 84 96 76 84 88 64 96 88 84 124

.1- Construct a 95 % confidence interval estimate of the mean pulse rate for males.

2-

Construct a 95 % confidence interval estimate of the mean pulse rate for female

Male 96 88 84 56 68 64 56 76 88 76

Female 84 96 76 84 88 64 96 88 84 124

.1- Construct a 95 % confidence interval estimate of the mean pulse rate for males.

2-

Construct a 95 % confidence interval estimate of the mean pulse rate for female

Explanation / Answer

1)

male:

for 95% CI and 9 degree of freedom ; t=2.262

hence confidence interval =sample mean -/+ t*std error =65.2146 ; 85.1854

2)

female:

for 95% CI and 9 degree of freedom ; t=2.262

hence confidence interval =sample mean -/+ t*std error =77.2400 ; 99.5600

X 96 88 84 56 68 64 56 76 88 76 mean(X) 75.200 std deviation(S) 13.959 std error =S/(n)1/2 4.414

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