If the problem below is given: Suppose that a garage samples 20 customers. They find the average time for there oil change is 4521 miles and a standard deviation of 1234. Find a 90% confidence...


If the problem below is given:


Suppose that a garage samples 20 customers. They find the average time for there oil change is 4521 miles and a standard deviation of 1234. Find a 90% confidence interval of the true mean.


Which t value would you use?




A.1.645


B.1.734


C.1.729


D.1.725



Jun 11, 2022
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