A random sample of 25 families in a developing country is takenand the number of children counted. The results from the study are summarized in the frequency table below:

x 0 1 2 3 4 5 6 7 8

f 5 2 1 1 1 3 4 3 5

Assuming the number of children per family is normally distributed, construct the 90% confidence interval for the population mean.

The 90% confidence interval for the population mean is:( ____, ____ )

Option choices for the 1st blank:

3.634

3.394

3.181

2.730

Option choices for the 2nd blank:

5.246

5.699

6.150

5.486