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seraphim [82]
3 years ago
8

Exhibit 13-3 To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been r

andomly assigned to the three treatments. You are given the results below. Treatment Observation A 20 30 25 33 B 22 26 20 28 C 40 30 28 22 The test statistic to test the null hypothesis equals _____. a. 1.059 b. .944 c. 19.231 d. 3.13
Mathematics
1 answer:
marta [7]3 years ago
7 0

Answer:

a. 1.059

Step-by-step explanation:

Test statistics is used in hypothesis testing to find the conclusion. Test statistics are T-values which are used in testing a hypothesis and deciding whether to accept or reject the null hypothesis.

Test statistics can be calculated with the following formula:

Z = x - u / s /\sqrt{n}

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