- For multiple choice questions, choice the single best answer. For Questions 1 and 2: Randomly selected High School students were asked how many hours they play computer games per week. Description is the sample is as follows: Sample size: 51 students Sample Mean: 8.3 hours Sample Standard Deviation: 5.2 hours 1. Determine the 95% Confidence Interval for mean hours spent playing computer games by all High School (7pt) students per week. Summarize your results by completing the provided sentence Summary: (Complete this sentence) With 95% confidence, the mean number of hours high school students spend playing computer games is between and hours per week. 2. The sample mean of 8.3 hours is your best point estimate for the population mean. At the 99% confidence level, (3pt) what is the margin of error associated with this estimate