According to a money report by a government institution, 18-to-20-year-old college students have an average credit card balance of $569 Aresearcher wants to find out if this number is lower now and collects data for a random sample of 40 college students Their average credit card debt was found to be $542 with a sample standard deviation of $67.23. Complete parts a through c a. Using 005, does this sample provide enough evidence to conclude that the average credit card balance of 18-to-20-year-old college students has decreased since 2016? Determine the null and altermative hypotheses Ho H H (Type integers or decimals Do not round Do not include the $ symbol in your answers) Determine the appropriate critical value Select the crrect choice below and fill in the answer box within your choice (Round to three decimal places as needed.) OA - OB. /2
According to a money report by a government institution, 18-to-20-year-old college students have an average credit card balance of $569 Aresearcher wants to find out if this number is lower now and collects data for a random sample of 40 college students Their average credit card debt was found to be $542 with a sample standard deviation of $67.23. Complete parts a through c a. Using 005, does this sample provide enough evidence to conclude that the average credit card balance of 18-to-20-year-old college students has decreased since 2016? Determine the null and altermative hypotheses Ho H H (Type integers or decimals Do not round Do not include the $ symbol in your answers) Determine the appropriate critical value Select the crrect choice below and fill in the answer box within your choice (Round to three decimal places as needed.) OA - OB. /2
College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section9.4: Expected Value
Problem 22E
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