Question

Show ALL work including steps used during computations using formulas and diagrams when appropriate. Write a statement explaining the meaning of your computations (conclusions) for all problems- hypothesis tests and confidence intervals.

Given below are the birth weights of babies born to mothers who took special vitamin supplements while pregnant:

3.53    4.57    3.93    4.33    3.39    3.68    4.68    3.52     3.84

3.12    4.29    2.27    4.13    4.47    3.22    3.43    2.64      3.40

a. Make a 95% confidence interval for the mean weight of babies whose mothers take vitamin supplements.

b. Do a hypothesis test to determine if these babies weight is more than the mean weight for the population of all babies which is 3.39 kg using α = .025

c. In a short paragraph, describe the relationship between your answer to part (a) and your answer to part (b).

Answer 1

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