Recall the data from the Physicians Health Study: Of the 11,034 physicians who took the placebo, 189

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Recall the data from the Physicians€™ Health Study: Of the 11,034 physicians who took the placebo, 189 suffered heart attacks during the study. Of the 11,037 physicians who took aspirin, 104 had heart attacks.
a. Recall that the formula for the standardized statistic in this scenario is

P(1 - i П2 п


Plug in relevant numbers into this formula and verify the value of the standardized statistic obtained using the applet.

b. Recall that the formula for the confidence interval in this scenario is

P1- P2 + multiplier × (Pi(1 – pi) , P2(1 – .) п п,

Plug in relevant numbers into this formula and verify the value of the 95% confidence interval obtained using the applet.

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Related Book For  book-img-for-question

Introduction To Statistical Investigations

ISBN: 9781118172148

1st Edition

Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy

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