You are the manager of a local cinema, and want to investigate how much the average customer spends on the concession stand. You take a sample of 21 customers, and you find a sample average of $12.23, with a sample standard deviation of $2.88. Using this information, you want to create a 95% confidence interval around the population mean. What is the upper bound (upper end) of the confidence interval in of your analysis? Note: 1- Do not round intermediate numbers. Round your final answer to two decimal places.

You are the manager of a local cinema, and want to investigate how much the average customer spends on the concession stand. You take a sample of 21 customers, and you find a sample average of $12.23, with a sample standard deviation of $2.88. Using this information, you want to create a 95% confidence interval around the population mean. What is the upper bound (upper end) of the confidence interval in of your analysis? Note: 1- Do not round intermediate numbers. Round your final answer to two decimal places.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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