Perilous Polls surveyed 90 first year college students asking
how many calls they make per day on average, and got an average of
30. Perilous Polls knows that for all college students the
standard deviation for phone calls per day is 11. Construct a
95% confidence interval for the mean number of calls.
Perilous Polls surveyed 90 first year college students asking how many calls they make per day on average, and got an av
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answerhappygod
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Perilous Polls surveyed 90 first year college students asking how many calls they make per day on average, and got an av
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