A climate scientist wishes to estimate the mean high temperature in Jarkarta, Indonesia. She selects a random of 30 days, and

Question

A climate scientist wishes to estimate the mean high
temperature in Jarkarta, Indonesia.
She selects a random of 30 days, and records the
high temperature; the mean of the
sample is 89.7° F, and the standard deviation
is s = 6.2°F.
Use this data to construct a 90% confidence
interval for the true mean high temperature.
87.39<µ< 92.01
87.78 <µ< 91.62
86.58 <µ< 92.82
87.79 <µ< 91.61

Kunduz · Accepted Answer

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