Question: 4S overall mortality . The 4S study introduced in Exercise 17.17 also tallied deaths due to any cause. The treatment group experienced 182 deaths (

4S overall mortality. The 4S study introduced in Exercise 17.17 also tallied deaths due to any cause. The treatment group experienced 182 deaths (n1 = 2221) and the control group experienced 256 deaths (n2 = 2223). Compare the mortality experience in the two groups in the form of a relative risk and 95% confidence interval.

Group Deaths Non-Deaths Total

Treatment 182 2039 2221

Control 256 1967 2223

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Total 438 4006 4444

________________________________________________________

P1 hat = 0.082p2 hat = 0.115

RR hat = 0.713

Positive Association, so, relative risk difference increase.

95% Confidence level (0.5934,0.8517)

Significant at the 95% confidence levelYes.

99% Confidence level (-0.5787, -0.103695)

Significant at the 99% confidence levelNo

Can you please check my answers?

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