Question
Bob has to estimate the mean number of gallons sold to customers. Assume the number of gallons sold follows the normal distribution with a population
Bob has to estimate the mean number of gallons sold to customers. Assume the number of gallons sold follows the normal distribution with a population standard deviation of 1.90 gallons. From records he selects a random sample of 80 sales and finds the mean number of gallons sold is 6.50.
what is point estimate of the population mean?
develop a 99% confidence interval for the population mean?
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Probability and Stochastic Processes A Friendly Introduction for Electrical and Computer Engineers
Authors: Roy D. Yates, David J. Goodman
3rd edition
1118324560, 978-1118324561
