SOLUTION: An investigation of a sample of 64 BBA students indicate that the mean time spent on preparing for examination was 48 months and the standard deviation was 15 months. What is the 9

Question 934146: An investigation of a sample of 64 BBA students indicate that the mean time spent on preparing for examination was 48 months and the standard deviation was 15 months. What is the 95% confidence interval time spent by all BBA student before the complete their examination
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Sample of 64: mean = 48 months and the standard deviation was 15 months.
95% confidence interval time
.......
ME = 1.96(15/sqrt(64) = 3.675
CI: 48 � 3.675
...
CI: (44.325, 51.675)
round as directed
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