Concept explainers
A study looked at the influence of retirement on the level of physical activity among people ages 45−64 in the Atherosclerosis Risk in Communities (ARIC) Study [18]. For this purpose a sport score from 1 (low physical activity) to 5 (high physical activity) and a leisure score from 1 (low physical activity) to 5 (high physical activity) were constructed. The main outcome measure was the sum of the sport and leisure scores [
Table 8.31 Change in combined sport and leisure score for African American women in the ARIC Study (year 6 score – year 0 score)
[Hint: Assume that for d > 200, a td distribution is the same as an N(0,1) distribution]
Implement the test in Problem 8.127, and report a two-tailed p-value.
8.127 What test can be used to assess whether the underlying
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Chapter 8 Solutions
WebAssign for Rosner's Fundamentals of Biostatistics, 8th Edition [Instant Access], Single-Term
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