Mathematics, 16.04.2021 04:00 mamacita712
Bob Nale is the owner of Nale's Gas Station. Bob would like to estimate the mean number of gallons of gasoline sold to his customers. He assumes a population standard deviation of 2.30 gallons. From his records, he selects a random sample of 60 sales and finds the mean number of gallons sold is 8.60. What is the z-statistic for a 99% confidence interval for the population mean.
Answers: 2
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Bob Nale is the owner of Nale's Gas Station. Bob would like to estimate the mean number of gallons o...
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