Prior to the 1999-2000 NBA Season, Rules Were Changed in an Effort

Prior to the 1999-2000 NBA season, rules were changed in an effort to increase scoring and make basketball games more exciting.Previously, the league averaged 183.2 points per games.A random sample of 25 games played during December 1999 had a sample mean of 195.88 points per game, with a sample standard deviation of 20.27 points per game.What is a 95% confidence interval for the mean number of points per game after the rule change? Does this interval provide evidence of an increase in the average number of points per game?

A) (187.51, 204.25) .No, but this does not contradict the idea that the average number of points per game has increased.
B) (187.51, 204.25) .Yes, this provides firm evidence that the average number of points per game has increased.
C) (174.83, 191.57) .No, but this does not contradict the idea that the average number of points per game has increased.
D) (174.83, 191.57) .Yes, this provides firm evidence that the average number of points per game has increased.

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