A car insurance company wanted information about the age of its customers. A random sample of 40 customers is selected, yields a mean of 39.3 years and a standard deviation of 14.9 years. Find the lower confidence limit (LCL) of the 92% confidence interval for the population mean age. Round your answer to three decinal places.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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A car insurance company wanted information about the age of its customers. A random sample of 40 customers is selected, yields a mean of 39.3 years and a
standard deviation of 14.9 years. Find the lower confidence limit (LCL) of the 92% confidence interval for the population mean age. Round your answer to three
decinal places.
Transcribed Image Text:A car insurance company wanted information about the age of its customers. A random sample of 40 customers is selected, yields a mean of 39.3 years and a standard deviation of 14.9 years. Find the lower confidence limit (LCL) of the 92% confidence interval for the population mean age. Round your answer to three decinal places.
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