Question: 10.32 A study was conducted to determine the weight (in lbs) gained by babies after consuming two different brands of baby food (A and B)

10.32 A study was conducted to determine the weight (in lbs)

gained by babies after consuming two different brands of baby food (A and B) for three months. For a random sample of 10 babies who consumed brand A, the mean weight gained was 2.05 lbs, and the sample standard deviation was 0.28 lbs. For an independent group of 7 babies who consumed brand B, the mean weight gained was 1.84 lbs, and the sample standard deviation was 0.05 lbs. Stating any assumptions that you need to make, test at the 2.5% level the null hypothesis that the population means are the same against the alternative that the mean is higher for the group that consumed brand A.

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