Using the data from Problem 14.13, calculate the sample coefficient of determination and test the significance of the population coefficient of determination using α = 0.05.
Answer to relevant QuestionsConsider the following set of ordered pairs: a. Calculate the slope and y intercept for these data. b. Calculate the SST. c. Partition the sum of squares into the SSR and SSE. Perform a hypothesis test with the data from Problem 14.1 to determine if the population correlation coefficient is not equal to zero using α = 0.05. What are your conclusions? In Problem As part of a research program for a new cholesterol drug, Johnson Pharmaceuticals would like to investigate the linear relationship between the ages and LDL (low density lipoprotein) cholesterol levels of men. The following ...Consider the following set of ordered pairs: Assuming that the regression equation is y = 3.693 + 0.285x and that the SSE = 7.650, test to determine if the slope is not equal to zero using α = 0.10. Consider the following set of ordered pairs: a. Calculate the correlation coefficient. b. Using α = 0.05, perform a hypothesis test to determine if the population correlation coefficient is less than zero.
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