I am shopping for a new sedan and would like to get one with excellent miles per gallon (MPG). I heard that Japanese cars tend to be more fuel efficient than American cars, so I collected MPG data on a random sample of 16 Japanese sedan models (listed in the table below) to be compared to the American car statistics. I would like to see if there is a significant difference, in either direction, between Japanese sedans and American sedans. The US Environmental Protection Agency reported that the average MPG for American sedans in 2019 is = 30 (comparison population mean). I set the significance level at  = .05 for a two-tailed hypothesis test. 

 Hint: Because we know the population mean for the American cars but not the standard deviation, we cannot conduct a Z test but should perform a one-sample t-test instead.

Japanese car model	MPG
1	32
2	30
3	36
4	36
5	35
6	28
7	32
8	28
9	32
10	28
11	32
12	32
13	28
14	30
15	33
16	32

C. Calculate the sample mean.

D. Estimate the standard deviation of the population (s)

E. Calculate the standard error (standard deviation of the sampling distribution)

F. Calculate the t statistic