Determine what type of statistical inference should be used to answer each of the questions below.

Two Independent Proportions

One Mean

Means from Dependent Samples

Proportions from Dependent Samples

Two Independent Means

One Proportion

You want to estimate the typical salary for women working in the nursing field.

You want to estimate the proportion of nurses that quit after working for only one year.

You want to estimate the difference in the number of men and women that quit the nursing field after only one year.

You want to estimate the difference in the salaries of men and women working in the nursing field.

The same one hundred people were asked in 2000 and in 2006 how much they had spent on medical bills. Has there been in increase in medical cost?

The same one hundred people were asked in the year 2000 and again in the year 2006 if they trusted their local hospitals. Has there been a change in people's trust?