Question

A sociologist is interested in the effects of racism on birth weight. He constructs a dataset containing the birth weight of African American children (in pounds) and their mothers’ self-reported experience with racism during their pregnancy. He divides the children into two groups—those whose mothers reported experiencing no race-related incidents and those whose mothers reported at least one experience of racism during their pregnancy. Assuming birth rates to be normally distributed, answer the following questions.

a. Find the means.

b. Find the variance.

c. Find the standard error of the differences between means.

d. Compute the t ratio.

e. Should you retain or reject the null hypothesis? Explain.

No Exposure	Exposure to Racism
7.2	5.4
8.4	6.3
7.6	6.8
6.9	7.2
9.2	6.1
8.7	5.9
6.9	6.8
7.3	7.6
	7.3
	7.4

Please actually give me the written steps to answer the problem and not a minitab answer.

Preferably a picture of it written on paper with clear handwriting. Thank you in advance.

Answer 1