A Recent Survey Sampled 1,086 Parents of School-Aged Children

Multiple Choice

A recent survey sampled 1,086 parents of school-aged children. One question on the survey asked respondents how much time per month (in hours) they spent volunteering at their children's school during the previous school year. The following summary statistics for time volunteered per month were given: ​ ​
Which of the following represents the 98% confidence interval?
​

A) (5.445, 5.755)
B) (5.277, 5.923)
C) (5.290, 5.909)
D) (5.416, 5.784)
E) (5.193, 6.007)