Included in syllabus, taken from Nolan and Heinzen Chapter 10 Exercises 10.41 pg 251. There is a claim that mothers are more sensitive to noises, especially children related sounds. To test this we invite two groups of women, mothers and non-mothers, on the pretext of testing mattresses for their comfort. While they are asleep, we introduce noises to test minimum volume needed for the women to be awakened. Conduct steps of hypothesis testing for an independent t-test using the data below:

Mothers
33
55
39
41
67

Non-Mothers
56
48
71