A pediatrician claims that the mean birth weight of a single-birth baby is greater than the mean weight of a baby that has a twin. The mean birth weight of a random sample of 85 single-birth babies is 3086 grams. Assume the population standard deviation is 563 grams. The mean birth weight of a random sample of 68 babies that have a twin is 2263 grams. Assume the population standard deviation is 624 grams. At
α =0.10, can you support the pediatrician's claim? (You can use minitab for hypothesis test)
Question 1Answer
a.
There is not enough evidence to reject the null hypothesis at 0.1 level of significance.
b.
The hypothesis test is not valid
c.
There is enough evidence to reject the null hypothesis at 0.1 level of significance
d.
There is not enough evidence to support the claim.
Mathbot Says...
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