alexwlodko
02.10.2020 •
Mathematics
A group of 367 first-year college students were asked, “About how many hours do you study during a typical week?” The mean response is 25.7 hours. Assume that the study time is normally distributed with a sample standard deviation of 5.7 hours. Construct a 95% confidence level interval for the mean study time of all first-year students.
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Ответ:
Ответ:
The answer is a) a cluster sample.
Step-by-step explanation:
This is because the hospitals are the randomly picked clusters.