Agroup of students were surveyed to find out if they like working as a camp counselor and/or as a lifeguard during summer break. the results of the survey are shown below:

- 32 students like working as a camp counselor
- 8 students like working as a camp counselor but do not like working as a lifeguard
- 29 students like working as a lifeguard
- 8 students do not like working as a lifeguard or a camp counselor

four students created the tables below to represent the data. cc represents camp counselor and lg represents lifeguard.

i have added the tables as an attachment because when i copied + pasted them they looked s confusing.

The survey of study habits and attitudes (ssha) is a psychological test that measures the motivation, attitude toward school, and study habits of students, scores range from 0 to 200. the mean score for u.s. college students is about 115, and the standard deviation is about 30. a teacher who suspects that older students have better attitudes toward school gives the ssha to 55 students who are at least 30 years of age. the mean score is 113.2. assume the population standard deviation is 30 for older students what is the margin of error for a 95% confidence interval for the population mean score for a. older students? b. compute the 95% confidence interval for the population mean score for older students. c. compute the 99% confidence interval for the population mean score for older students. d. compute the 88% confidence interval for the population mean score for older students.