A. F test B. Grubb’s test C t test case 1 D t test case 2 E t test case 3 A. F t

Question

A. F test B. Grubb’s test C t test case 1 D t test case 2 E t test case 3

A. F test B. Grubb’s test C t test case 1 D t test case 2 E t test case 3 Two analytical methods were used to determine the concentration of chromium in a farm pond. Replicate measurements were made with both methods on the same collected sample. The results are shown below. What test would you use to determine if Method A and Method B give the same result Replicate Method A Method 105.5 103.9 104.8 104.5 106.1 102.8 104.9 103.3 105.6 103.6 105.9 103.1 4

Explanation / Answer

When two equal means are obtained by the two methods. In this case two sample t test is used. So answer is

(D) t Test case 2

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