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Fischer and Spassky play a chess match in which the first player to win wins the match. After 10 consecutive draws, the match is declared drawn. Each game is won by Fischer with a probability of 0.4, is won by Spassky with probability of 0.3, and is a draw with probability of 0.3, independently of the previous games. What is the probability that Fischer wins the match?
Speaking to a group of analysts in January 2006, a brokerage firm executive claimed that at least 70% of investors are currently confident of meeting their investment objectives.
If the sum of squares total is 800 and the sum of squares error is 170. What is the r-squared value?
Calculate correlation coefficient for these sample data.
"Give an example of a statistic that you have heard quoted in the media that you do not believe is accurate either due to bias or other incorrect statistical methods. Describe the relevant population and the source (e.g. newspaper, TV, radio, inte..
Quality control studies for Leaky Jet Computer Printers show the lifetime of the printer follows a normal distribution with a mean of 4.5 years and a standard deviation of 0.85 years.
What is the real world value of the y-intercept and slope in a regression equation? Other than statistics problems, why should I care?
A food processor is concerned that the 16 oz. can of sliced pineapple is being overfilled. The quality control department took a random sample of 50 cans and found that the arithmatic mean weight was 16.05 oz.
A manufacturer of athletic footwear claims that the mean useful lifetime of his product will exceed 50 hours. A random sample of 36 pairs of shoes leads to the following sample results, in terms of useful life: x = 52.3 hours and s = 9.6 hours.
A bank has the following data on the gender and marital status of 200 customers.What is the probability of finding a single female customer? Is marital status independent of gender? Explain using probabilities.
Deriving the regression equation, testing the model fit and obtains confidence interval for estimated values.
You calculate that their mean monthly rent is $613 and their standard deviation is $96. What are the degrees of freedom for a one-sample -statistic?
Type the above data into the SPSS Data Editor window, or save this file as an unformatted text file and write SPSS syntax to read it in.
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