A local high school basketball team had 18 home games this season and averaged 58 points per game. If we assume that the number of points made in home games is normally distributed, which of the following is most likely the range of points for a confidence interval of 90 percent()
A. 26 to 80.
B. 24 to 78.
C. 34 to 82.
参考答案:C
解析:
This question has a bit of a trick ! To answer this question, remember that the mean is at the midpoint of the confidence interval. The correct confidence interval will have a midpoint of 58: (34+82)/2=58.