Multiple Choice
A random sample of 600 adults is taken from a population of over one million, in order to compute a confidence interval for a proportion. If the researchers wanted to decrease the width of the confidence interval, they could
A) decrease the size of the population.
B) decrease the size of the sample.
C) increase the size of the population.
D) increase the size of the sample.
Correct Answer:
Verified
Correct Answer:
Verified
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