The number of cars sold annually by used car salespeople is normally distributed with a standard deviation of 16. A random sample of 320 salespeople was taken and the mean number of cars sold annually was found to be 65. Find the 96% confidence interval estimate of the population mean. Note: For each confidence interval, enter your answer in the form (LCL, UCL). You must include the parentheses and the comma between the confidence limits.   Confidence Interval =

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
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The number of cars sold annually by used car salespeople is normally distributed with a standard deviation of 16. A random sample of 320 salespeople was taken and the mean number of cars sold annually was found to be 65. Find the 96% confidence interval estimate of the population mean.

Note: For each confidence interval, enter your answer in the form (LCL, UCL). You must include the parentheses and the comma between the confidence limits.

 

Confidence Interval =

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