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

Respuesta :

Answer:

a) Alpha

Step-by-step explanation:

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.