22. Big Kids To determine whether there is a significant difference in the weights of boys and girls beginning kindergarten, random samples of 50 boys and 50 girls aged 5 years produced the following information

a. Do you have a preconceived idea of what to expect when examining the average weights of 5-year-old boys and girls? Based on your answer, state the null and alternative hypotheses to be tested.

b. Test the hypothesis in part a using a 5.05.

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Standard Mean Deviation Sample Size Boys Girls 19.4 kg 2.4 50 17.0 kg 1.9 50