When birth weights were recorded for simple random sample of 14 male

babies born to mothers taking special vitamin supplements, the sample mean of 3659 kilograms and a standard deviation of 0.666 kilogram. Use a 0.05 significance level to test the claim that the mean birth weight for all male babies of mother given vitamins is different from 3.39 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?