Chapter 10.3, Problem 95E

To determine

To select from the option to find out which method to use.

Answer to Problem 95E

Option (a) is the correct option.

Explanation of Solution

It is given that there are two methods for measuring the concentration of a pollutant in fish tissue and we can apply both methods to each fish in a random sample.

We will use a test if we want to test for a difference, equality, increase r decrease and if will use an interval if we want to estimate an interval in which the true value lies. Thus, in this case we will use the paired t test for the difference mean because both the methods are used on the same random sample. Thus, option (a) is the correct option.