Question

In a study of birth order and intelligence, IQ tests were given to 18-and 19- year-old men to estimate the size of the difference, if any, between the mean IQs of firstborn sons and secondborn sons. The following data for 10 firstborn sons and 10 secondborn sons are consistent with the means and standard deviations reported in the article. The two samples are drawn independently (the Firstborn and Secondborn individuals here are not necessary to be brothers or sisters). You want to see if there is a difference in mean IQs between firstborn and secondborn sons.

Firstborn: 104 82 102 96 129 89 114 107 89 103

Secondborn: 103 103 91 113 102 103 92 90 114 113

a. what kind of hypothesis test that should be used.

b.State the null hypothesis and alternative hypothesis with the formula and complete words

c. Using MINITAB to find the p-value for the test.

d. At α = 0.05, what is the appropriate conclusion? Which type of error is possible? Write the conclusion connected with the problem above.

Answer 1

for further any queries please comment and thank you.