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Question: You are given the following sample data for variables x and y:
a. Construct a scatter plot for these data and describe what, if any, relationship appears to exist.
b. Compute the regression equation based on these sample data and interpret the regression coefficients.
c. Based on the sample data, what percentage of the total variation in the dependent variable can be explained by the independent variable?
d. Test the significance of the overall regression model using a significance level of 0.01.
e. Test to determine whether the true regression slope coefficient is equal to 0. Use a significance level of 0.01.
1. A comparison of the proportion of frequent binge drinkers, revisited. Refer to Exercise 8.46. Redo the exercise in terms of the proportion of nonfrequent binge drinkers in each classi?cation. Explain how you could have obtained these results fr..
Find the X2 statistic and its P-value. Take the square root to obtain the z statistic for comparing two proportions. This is the statistic that the Supreme Court used in its criterion for statistical significance.
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(probability that person has college degree is p = 0.30). If N adults are randomly selected, find probabilities that
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use the following information to answer the question. suppose that a recent poll of american households about pet
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