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The national basketball association calculates many statistics, as do other professional sports organizations. Using the date below, investigate the relationship between the average number of points per game and the number of All-star appearances for six of the NBA's best Big Men. Include a scatter diagram, the linear correlation coefficient and line of best fit, and a statement about their meaning. Player Points All-StarGeorge Mikan 22.6 4Bill Russell 15.1 12Wilt Chamberlain 30.1 13Kareem Abdul-Jabbar 24.6 19Hakeem Olajuwon 21.8 12Shawuille O'Neal 16.8 12
In a goodness-of-fit test where the sample size is 200, there are 5 categories, and the significant level in .05. The critical value of X2 is.
The counts in the five groups are 113, 95, 108, 99, and 85, respectively. The probabilities for these five intervals are all the same. What is this probability?
With a mean of 300 and a standard deviation of 80, how high a score do you need to be in the top 30%?
Excel or Minitab users: The data set is available in file named JobSalary. All data sets can be found in your eBook or on your Student CD. Use = .05 to test for a significant difference among the mean annual salaries for the three job fields.
The times for 300 college students of introductory statistics to complete a one-hour times exam.
The average stock price for companies making up the S&P 500 is $30, and the standard deviation is $8.20. Assume the stock prices are normally distributed.
if a white-collar worker is chosen at random from this group, what is the probability that he or she prefers light beer (to reg. beer or none at all)?
The winning team's score in 13 high school basketball games was recorded. If the sample mean is 54.3 points and the sample standard deviation is 11.0 points, find the 98% confidence interval of the true mean.
Would it be reasonable to conclude that the population mean is 63 pounds?
Below, explicitly state slope of your trend line and describe what value of slope signifies in terms of this context.
With a major expansion planned, Judy projects sales next year to increase to 1,200 radials. What will the demand be each season? Please show work (formulas).
Show that there is no rational number b/a whose square is 2, as follows: if b^2 = 2a^2, then b is even, so b = 2c, so, substituting and cancelling 2, 2c^2 = a^2.
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