TaylorHinson

I am having difficulty doing the last part of the hw, 4a, which deals with finding the confidence interval for a list of numbers.

I’m given the following data:

```
Car,mpg
1,40
2,25
3,21
4,38
5,26
6,36
7,25
8,37
9,30
10,30
11,32
12,30
13,23
14,27
15,32
```

How can I find and interpret a 95% confidence interval for this data?

Can anyone help explain how to work out this problem?