Researchers collected a simple random sample of 36 children who had been identified

as gifted in a large city. The following table shows the mean and standard deviation of the IQ scores of mothers and fathers of these children.

a) Are the IQs of mothers and the IQs of fathers in this data set independent? Explain.

b)Write the appropriate null- and alternative hypotheses,

c)Use Minitab to test the hypothesis for the difference in two means.

d) What are the t-value and the p-value?

f) What is the conclusion from the test? Should you reject the null hypothesis or not reject the null hypothesis? Use a 5% significance level.

g) Write a complete sentence that includes the original investigation topic and your conclusion from the test.