A gas station owner would like to estimate the mean number of gallons of gasoline sold to his customers. Assume the number of gallons sold follows the normal distribution with a population standard deviation of 2.3 gallons. From his records, he selects a random sample of 55 sales and finds the mean number of gallons sold is 8.73. (Round your answers to 2 decimal places.) (a) The point estimate of the population mean is [ (b) The 99 percent confidence interval for the population mean is between and
A gas station owner would like to estimate the mean number of gallons of gasoline sold to his customers. Assume the number of gallons sold follows the normal distribution with a population standard deviation of 2.3 gallons. From his records, he selects a random sample of 55 sales and finds the mean number of gallons sold is 8.73. (Round your answers to 2 decimal places.) (a) The point estimate of the population mean is [ (b) The 99 percent confidence interval for the population mean is between and
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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![A gas station owner would like to estimate the mean number of gallons of gasoline sold
to his customers. Assume the number of gallons sold follows the normal distribution with
a population standard deviation of 2.3 gallons. From his records, he selects a random
sample of 55 sales and finds the mean number of gallons sold is 8.73. (Round your
answers to 2 decimal places.)
(a) The point estimate of the population mean is
(b) The 99 percent confidence interval for the population mean is between
and](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff9315fb0-dabe-4ff1-a83d-117baa580262%2F1f673dac-04c0-466b-bdbe-18c64b2d22f5%2F6rdncqm_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A gas station owner would like to estimate the mean number of gallons of gasoline sold
to his customers. Assume the number of gallons sold follows the normal distribution with
a population standard deviation of 2.3 gallons. From his records, he selects a random
sample of 55 sales and finds the mean number of gallons sold is 8.73. (Round your
answers to 2 decimal places.)
(a) The point estimate of the population mean is
(b) The 99 percent confidence interval for the population mean is between
and
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