Project #9918 - Statistics Problem (PHstat)

The following is a sample of overall miles per gallon (MPG) of family sedans:

38  24  26  21  25  22  24  34  23  20  37  22  20  33  22  21

a. Construct a 95% confidence interval estimate for the population mean MPG of 2012 family sedans, assuming a normal distribution.

b. Interpret the interval constructed in (a).

 

*use of PHstat preferred (but not required) for this assignment*

**For a, must include: Mean, Standard Deviation, Standard Error of the Mean, Z value, Interval Width, Interval Lower Limit, and Interval Upper Limit**

 

Subject Mathematics
Due By (Pacific Time) 07/30/2013 12:00 am
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