An economist is interested in studying the relationship between length of unemployment and job-seeking activity among white-collar workers. He interviews a sample of 12 unemployed accountants as to the number of weeks they have been unemployed (X) and seeking a job during the past year (Y). Compute a Pearson’s correlation coefficient for these data and determine whether the correlation is significant.
Answer to relevant Questions1. In a regression analysis, we predict the value of Y from X based on a a. significant correlation coefficient. b. a mathematical equation. c. a weak positive correlation. d. a normal curve. 2. Which of the following ...Does the number of years that a woman is on birth control (X) have an effect on how long it takes for her to become pregnant (Y) once she ceases to use it and tries to have children? A curious researcher collected the ...1. When the requirements of Pearson’s r cannot be met, we might still be able to employ a. a t ratio. b. a parametric measure of correlation. c. a nonparametric measure of correlation. d. None of the above 2. Why would we ...A researcher is interested in determining the degree of association between the political leanings of husbands and wives. For the following cross-tabulation, calculate chi-square and determine the contingency coefficient. A demographer was interested in the relationship between population density (X) and quality of life (Y). Ranking 10 major cities on both variables, he obtained the following results: Compute the rank-order correlation and ...
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