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Set A: 250.66, 250.22, 251.40, 252.78, 254.39, 254.71, 250.36, 249.17, 249.28, 248.61, 245.90 Set B (have...

Set A: 250.66, 250.22, 251.40, 252.78, 254.39, 254.71, 250.36, 249.17, 249.28, 248.61, 245.90 Set B (have not added 0.5): 247.90, 250.66, 253.85, 250.87, 246.90, 246.63, 247.99, 249.43

1. Take the closing prices from data set B and add 0.5 to each one of them. Treat data sets A and B as hypothetical sample level data on the weights of newborns whose parents smoke cigarettes (data set A), and those whose parents do not (data set B). a) Conduct a hypothesis test to compare the variances between the two data sets. b) Conduct a hypothesis to compare the means between the two data sets. Selecting the assumption of equal variance or unequal variance for the calculations should be based on the results of the previous test. c) Calculate a 95% confidence interval for the difference between means.

math   Statistics-And-Probability   
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