Partners Checking Up on Each Other. Use the following information for Exercises 48–51. According to a study in the journal Computers in Human Behavior,8 65% of the college women surveyed checked the call histories on the cell phones of their partners, whereas 41% of the males did so.

Question 7.174

48. Suppose we take a sample of 100 college females and 100 college males.

  1. Find and for the sample proportion of females checking the call histories of their partners.
  2. Find and for the sample proportion of males checking the call histories of their partners.