Consider the following hypothesis. H0: average age at first birth for mothers in the United States i

Consider the following hypothesis. H0: average age at first birth for mothers in the United States is 23.7 years, and H1: average age for first-time mothers in the United States is 21 years, to be tested at the 99 percent level of confidence.

a) Is alpha known in principle? If yes, can its value be stated from the information given? if yes, what is the alpha? Please explain.

b) Is beta known in principle? If yes, can its value be stated from the information given? if yes, what is beta? Please explain

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