A consumer advocate study estimates the costs to...

timer Asked: Apr 22nd, 2015

Question description

A consumer advocate study estimates the costs to replace automotive transmission. 

A total of 50 repairs are examined and sample mean is found to be $2650. The population standard deviation is assumed to be $425. What is the 95 percent confidence interval for the population mean transmission replacement cost? 

.... i posted this earlier idk i cant access the link :/

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