MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The Department of Agriculture wants to determine whether the mean yield per acre for a particular variety of soybeans is different this year compared to the historical avg yield of 520 bushels per acre. Thus, the null and alternative hypotheses are
Ho: mu = 520
Ha: mu is not = to 520
You set out to conduct a hypothesis test at the 95% level. Mean yields are distributed Normally. You take a sample of 36 different acres. From this sample, you calculate a mean yield of 573 and a std deviation of 24.
What are the critical values for this hypothesis test?
Group of answer choices
-2.58 and 2.58
-2.56 and 2.56
-1.64 and 1.64
-1.96 and 1.96
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