Chapter 8, Problem 57P

Use the following information to answer the next 13 exercises: The data In Table 8.10 are the result of a random survey of 39 national flags (with replacement between picks) from various countries. We are interested in finding a confidence interval for the true mean number of colors on a national flag. Let X = the number of colors on a national flag.

X	Freq.
1	1
2	7
3	18
4	7
5	6

Table 8.10

Construct a 95% confidence interval for the true mean number of colors on national flags.

The 95% confidence interval is_____