Calculate the correlation coefficient
Calculate the correlation coefficient r for the data pairs given below.
(-3, 5), (-1, 0), (6, - 12), (3, - 7), (1, - 3),
(0, - 2), (2, - 5), (4, - 10), (5, - 11), (- 2, 2)
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In New York's Pick 3 lottery game, you pay $1.31 to choose the sequence of 5 digits, such as 733. If you choose the same sequence of 5 digits that are drawn you win as well as receive $311.09.
Annual repair costs start at $5000 in 5th year and increase by $500 per year thereafter until disposed of. If interest rate is 10%, determine closest equivalent cost of ownership?
Suppose that a procedure yields the binomial distribution with trial repeated n times. Employ the binomial probability formula to find the probability of x successes given the probability p of success on a single trial.
Supposing that the drug has no effect, so that the probability of nausea was 0.0108, find the mean and standard deviation for the numbers of people in groups of 907 that can be expected to experience nausea.
New machine is anticipated to generate be fore-tax cash savings of 3,000 per year. Company's tax rate is 40%. Determine IRR of proposed project?
Given `the sample with r = 0.823, n = 10, and level of significance 0.05, determine the standardized test statistic t necessary to test the claim p=0. Round answers to three decimal places.
The variables x and y have a significant correlation, and the equation of the regression line describing the relationship between them is y = -5.5x - 9.9. Find the predicted value for y given x = -3.8.
Determine the standard error of estimate for the following data pairs: (-1, 2), (-2, 6), (-3, 7), (-4, 10). The regression equation for the data is p(hat)=-2.5x.
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