A random sample of 60 braking distance of cars is obtained in order to estimate the

D

Danifam

New member
mean breaking? distance.The sample mean is 137 feet and the population standard deviation is 7 feet.( 1) Find the point estimate of the population mean (2) F ind 95% confidence maximum error for the population mean (3) Find the 95% CONFIDENCE INTERVAL for the population mean.
How can I describe if the assumptions are right or satisfied
 
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