The time it takes a pizza delivery driver to reach his destination for a sample of 28 deliveries has a mean of 36 minutes. The standard deviation of those 28 deliveries is s = 2 minutes. Construct an 85% confidence interval to estimate the true mean of all his pizza deliveries. (35.440,36.560) (27.520,28.480) (35.259,36.741) (27.347,28.653)

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The time it takes a pizza delivery driver to reach his destination for a sample of 28
deliveries has a mean of 36 minutes. The standard deviation of those 28 deliveries is
s = 2 minutes. Construct an 85% confidence interval to estimate the true mean of all
his pizza deliveries.
(35.440,36.560)
(27.520,28.480)
(35.259,36.741)
(27.347,28.653)
Transcribed Image Text:The time it takes a pizza delivery driver to reach his destination for a sample of 28 deliveries has a mean of 36 minutes. The standard deviation of those 28 deliveries is s = 2 minutes. Construct an 85% confidence interval to estimate the true mean of all his pizza deliveries. (35.440,36.560) (27.520,28.480) (35.259,36.741) (27.347,28.653)
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