Sample Standard Deviation for Automobile Manufacturer
The population of lengths of aluminum-coated steel sheets is normal distributed with a mean of 30.05 inches
July 9, 2019Standard Deviation vs. Population Standard Deviation
July 9, 2019An automobile manufacturer has a new model that they claim gets 27 miles per gallon. A consumer testing agency selects 50 of these cars and finds that the sample meanis 25 miles per gallon and the sample standard deviation(s) is 3 miles per gallon. Using a = 0.05 test the manufacturer’s claim.
An automobile manufacturer has a new model that they claim gets 27 miles per gallon. A consumer testing agency selects 50 of these cars and finds that the sample mean is 25 …
The solution examines sample standard deviation for an automobile manufacturer.
