Free throws 2011 During the 2010–2011 NBA season,Stephen Curry led the league by making 212 of 227free throws, for a success rate of 93.39%. But ChaunceyBillups was close behind, with 384 of 419 (91.65%).a) Find a 95% confidence interval for the difference intheir free throw percentages.b) Based on your confidence interval, is it certain thatCurry is better than Billups at making free throws?
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Free throws 2011 During the 2010–2011 NBA season,
Stephen Curry led the league by making 212 of 227
free throws, for a success rate of 93.39%. But Chauncey
Billups was close behind, with 384 of 419 (91.65%).
a) Find a 95% confidence interval for the difference in
their free throw percentages.
b) Based on your confidence interval, is it certain that
Curry is better than Billups at making free throws?
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