What if we know our friend, Jimmy, spends two hours playing video games every day in an otherwise highly structured life, how many hours might Jenny, his sibling, have to engage inaleisurely activity?12.Suppose we are interested in the relationship between the number of siblings a child has and the age at which they learn to walk. Test the null that there is no relationship for time spent in leisure between siblings.C. Test the null that there is no difference between biological males and biological females regarding daily leisure time.B. Imagine the following data set is gathered regarding biological malefemale sibling pairs and their average daily time spent doing leisurely activities.Male Female3.9 4.21.6 1.92.9 1.63.5 2.33.3 2.14.9 4.05.5 3.54.4 5.33.7 2.13.5 2.0A. Can the null hypothesis that ? X = ? Y be rejected?11. What is the correlation between X and Y ?B. For the following bivariate data set, answer the following questions:X Y3 95 47 04 29 02 105 54 72 81 8A. If a researcher wanted to predict charitable giving based on the level of political conservatism espoused by an individual, what statistical tool seems most appropriate? Why?10.
Calculate the corresponding s e using the computational formula.Review 68. Establish the regression equation for predicting Y from X.
Calculate the slope of the regression line for predicting Y from X. Provide the requested statisticsbased on the following data set.X 76 149 38 9A. Calculate the corresponding s e using the computational formula.21. What would be our predicted GPA ifwe adopted each of the following study plans?A. Suppose a regression analysis of bivariate data gathered on the variables hours studied per week and GPA results in a regression equation as follows: Y p = 2.92 + 0.08( X ? 18). Interpret the likely relationship between gas prices and transportation activities like traveling for vacation.19. Suppose a tax official learns that the slope for the regression line between the price of gas and the number of nonwork?related miles driven by drivers to be ?0.40. What percent of the variance of Y is accounted for by the variance of X ?x y6 39 77 610 9Chapter 1618. What is r crit ?D Reject or fail to reject the null hypothesis?E.
Specify the null and alternative hypotheses.C. the following data set:A.Calculate r and conduct a two?tailed test of the null hypothesis ( ? =?.05).B. What percent of the variance of Y is accounted for by the variance of X ?X Y6 39 77 610 17. Reject or fail to reject the null hypothesis?E. Calculate r and conduct a two?tailed test of the null hypothesis ( ? =?.05).B. For the following data set For the following data set:A.
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