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