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The business manager of a large corporation wanted to determine whether there was a difference between what salesmen spend on lunch and what executives spend on lunch. A sample of 8 salesmen indicated that they spent an average of $10.77 with a sample standard deviation of 0.24 on lunch. A sample of 10 executives indicated that they spent an average of $11.30 with a sample standard deviation of 0.56 on lunch. Let = 0.05. What are the critical values?
Evaluate the correlation coefficient.
Find the equation of the regression line for the given data. What is the predicted value of Y when X = -2? What is the predicted value of Y and find the correlation coefficient between X and Y. Is there a weak or strong, positive or negative corr..
Test the hypothesis that there is not relationship between the proneness to use excessive force score and the force score for officers trained at Academy A.
Develop a sales forecast for each store for December Plot the data for each store.Use data in table.
Binomial probability distribution
what is the point estimate for the mean hospital cost for victims who wore seat belts and construct and interpret 99percent conf interval estimate for the mean hospital costs for accident victims who wore seatbelts.
Regression analysis techniques
How many free premium channels should the research director recommend for inclusion in the 3-For-All service ?
Calculate the ANOVA table for the model, which you have determined. What is the estimate of the variance in the electric power measurement?
Find the probability of given case.
Westhouser believes that it on make $650.000 from alternative Investments. What should the company do - houscr does not take advantage of Its current op-don, it can attempt to buy the land at the beginning of June or the beginning of July. provided ..
Calculating a Z-score and graphing a box plot and Statistical Inference of Sample Mean , Binomial Distribution and Regression Analysis
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