Decreasing the sample size from 750 to 375 would multiply the standard deviation by a. 2. b.
Question:
Decreasing the sample size from 750 to 375 would multiply the standard deviation by
a. 2.
b. √2
c. 1/2.
(d)1/√2.
(e) none of these.
The magazine Sports Illustrated asked a random sample of 750 Division I college athletes, “Do you believe performance-enhancing drugs are a problem in college sports?” Suppose that 30% of all Division I athletes think that these drugs are a problem. Let p̂ be the sample proportion who say that these drugs are a problem.
Select the best answer.
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b 2 When the sample size is halved the standard d...View the full answer
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