Lab9ans.pdf - Math 10 Lab 9 Two population tests comparing...

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Math 10 - Lab 9 – Two population tests comparing means and variances Instructor Answers The National Basketball Association (NBA) announced that a new basketball would be used for the 2006–2007 season. Here is the announcement from the NBA about the new ball: The NBA is introducing a new Official Game Ball for play beginning in the 2006–07 season. The new synthetic ball, manufactured by Spalding, features a new design and a new material that together offer better grip, feel, and consistency than the current leather ball. This marks the first change to the ball in over 35 years and only the second in 60 seasons. Players in the NBA complained about the new ball, saying the ball reduced their performance. The NBA announced that the traditional leather ball would be used again beginning January 1, 2007. For the following 4 problems, you will data from NBA games showing home team score and visiting team score for games played with original leather ball and the new synthetic ball. You will then conduct the following hypothesis tests. Make sure you show all steps: 1. Test for a difference in Standard deviation in home team score due to the type of ball. State Ho and Ha.

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