The column 'SUV' contains the entires miles per gallon (MPG) of 2012 small SUVs. a) develop a 95% confidence interval estimate for the population mean MPG of 2012 small SUVs, assuming a normal distribution. b) Interpret the interval constructed in (a). c) Compare the results in (a) to those in Problem 8.19(a).
| Sedans |
SUV |
| 38 |
20 |
| 24 |
22 |
| 26 |
23 |
| 21 |
22 |
| 25 |
23 |
| 22 |
22 |
| 24 |
22 |
| 34 |
21 |
| 23 |
19 |
| 20 |
22 |
| 37 |
22 |
| 22 |
26 |
| 20 |
23 |
| 33 |
24 |
| 22 |
19 |
| 21 |
21 |
|
22 |
|
16 |