When birth weights were recorded for a simple random sample of 11

When birth weights were recorded for a simple random sample of 11

male babies born to mothers taking a special vitamin​ supplement, the sample had a mean of 3.667 kilograms and a standard deviation of 0.657 kilogram. Use a 0.05 significance level to test the claim that the mean birth weight for all male babies of mothers given vitamins is different from 3.4
kilograms, which is the mean for the population of all males. Based on these​ results, does the vitamin supplement appear to have an effect on birth​ weight?

Formulate the null and alternative hypotheses. Choose the correct answer below.
A.
H0​: μ =3.4
Ha​: μ >3.4

B.
H0​: μ >3.4
Ha​: μ <3.4

C.
H0​: μ ≠3.4
Ha​: μ =3.4

D.
H0​: μ = 3.4
Ha​: μ ≠ 3.4

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