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Sagot :
To minimize the probability that he incorrectly rejects the null hypothesis, David must change the (d) the significance level of the test
How to determine the true statement?
The sample size is given as:
n = 40
From the question, we understand that the sample size cannot be changed
This means that the standard deviation, and the mean cannot be altered too.
Since the value of the significance level is not constant, David can decide to adjust the significance level.
Hence, David must change the (d) the significance level of the test
Read more about test of hypothesis at:
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Answer:
d. the significance level of the test
Step-by-step explanation:
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