A statistician controls ____________ by establishing the risk he or she is willing to take in terms of rejecting a true null hypothesis.
a) Alpha
b) beta
c) mean
d) standard deviation

The correct option is alpha because alpha known as type I error is the probability of reject the null hypothesis when null hypothesis is true. If we take alpha 5%, it means that we are taking 5 out of 100 chance of rejecting the null hypothesis when it is true.

So, statistician controls alpha by establishing the risk of rejecting a null hypothesis when its true.

A statistician controls ____________ by establishing the risk he or she is willing to take in terms of rejecting a true null hypothesis. a) Alpha b) beta c) mean d) standard deviation

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A statistician controls ____________ by establishing the risk he or she is willing to take in terms of rejecting a true null hypothesis.
a) Alpha
b) beta
c) mean
d) standard deviation