Information about chi-square

Reference no: EM13107772

Listed below are birth weights (in kilograms) of male babies born to mothers on a special vitamin supplement (based on data from the New York State Department of Health). Test the claim that this sample comes from a population with a standard deviation equal to 0.470 kg, which is the standard deviation for male birth weights in general. Use a 0.05 significance level. Does the vitamin supplement appear to affect the variation among birth weights?

3.73 4.37 3.73 4.33 3.39 3.68 4.68 3.52

3.02 4.09 2.47 4.13 4.47 3.22 3.43 2.54

Find the statistics needed to perform a Chi Square test on the data.

Perform the Chi Square test indicated in the problem. Be certain to use the significance level ? = 0.05. Your test must include hypotheses, work with statistics and a conclusion.

Write a brief statement regarding the last question in the problem.

Reference no: EM13107772

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