Question

Need help finding the correct formula for some HW: Management of the Sycamore Steel Company wishes to determine if there is any difference in performance between the day and night shift workers. They randomly sample a group of 40 day-shift workers and found a mean output of 62 parts per hour with a standard deviation of 9 parts per hour. A random sample of 30 night shift workers found an output of 67 parts per hour and a standard deviation of 8 parts per hour. At the 0.05 level of significance is there a difference between the day and night shift works.

Answer 1

@dumbcow

Answer 2

It's more of a stats problem.

Answer 3

ive taken stats but am no expert so i will refer to this link which will explain it better
i hope its not too technical, i assume you are familiar with t-test and reading t-table

http://www.itl.nist.gov/div898/handbook/eda/section3/eda353.htm

Answer 4

Thanks!