![SOLVED: A car manufacturer advertises that a new car averages 39 miles per gallon of gasoline. What alternative hypothesis would you use if you think this statistic is too high? SOLVED: A car manufacturer advertises that a new car averages 39 miles per gallon of gasoline. What alternative hypothesis would you use if you think this statistic is too high?](https://cdn.numerade.com/ask_previews/b35ea074-f961-4cd0-92a6-f959ec05b6f2_large.jpg)
SOLVED: A car manufacturer advertises that a new car averages 39 miles per gallon of gasoline. What alternative hypothesis would you use if you think this statistic is too high?
![SOLVED: Suppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and standard deviation of 37.8 and 3.9 mpg; respectively: [You may find it useful to reference SOLVED: Suppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and standard deviation of 37.8 and 3.9 mpg; respectively: [You may find it useful to reference](https://cdn.numerade.com/ask_images/1e71b61704bb4c45975a3de79b5734a3.jpg)
SOLVED: Suppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and standard deviation of 37.8 and 3.9 mpg; respectively: [You may find it useful to reference
![SOLVED: 8.19 The file Sedans contains the MPG (miles per gallon) of 2015 midsized sedans: overall miles per gallon 26 38 26 30 24 26 28 28 24 26 24 39 32 SOLVED: 8.19 The file Sedans contains the MPG (miles per gallon) of 2015 midsized sedans: overall miles per gallon 26 38 26 30 24 26 28 28 24 26 24 39 32](https://cdn.numerade.com/ask_images/edcae20990614b6da8a74dfc49f19896.jpg)
SOLVED: 8.19 The file Sedans contains the MPG (miles per gallon) of 2015 midsized sedans: overall miles per gallon 26 38 26 30 24 26 28 28 24 26 24 39 32
![New Report Shows That Within Vehicle Class, Fuel Efficiency Varies Widely · Consumer Federation of America New Report Shows That Within Vehicle Class, Fuel Efficiency Varies Widely · Consumer Federation of America](http://consumerfed.org/wp-content/uploads/2006/02/02-27-graph.png)
New Report Shows That Within Vehicle Class, Fuel Efficiency Varies Widely · Consumer Federation of America
![SOLVED: Suppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and a standard deviation of 38.2 mpg and 2.6 mpg, respectively. [You may find it useful SOLVED: Suppose that the miles-per-gallon (mpg) rating of passenger cars is normally distributed with a mean and a standard deviation of 38.2 mpg and 2.6 mpg, respectively. [You may find it useful](https://cdn.numerade.com/ask_images/b1b09bba4a664f3ba6740017d8c0b8f5.jpg)