Is there any relationship between the satisfaction of Hong Kong, the attractiveness of Hong Kong and the likelihood of a return to Hong Kong?

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11) If “correlation does not imply causation,” What does it imply?

True or false: For a difference-in-differences estimator to be valid, outcome trends must be parallel and balanced (i.e., identical).

disp hp qsec wt Use the following visualization to answer questions 2 - 4. mpg drat drat mpg qsec wt hp disp -1 -0.8 -0.6-0.4 -0.20 0.2 0.4 0.6 0.8 1

What is the research hypothesis? a) The stress task will not lead to an increase in stress hormones. OR b) The stress task will lead to an increase in stress hormones.

9. A researcher finds that for female applicants, the likelihood of being hired for a job increases as their work experience increases.  However, for male applicants, the likelihood of being hired decreases as their work experience increases.  This finding would suggestgender and work experience have no effect on likelihood of being hired for a job.   a main effect of work experience (little or a lot). an interaction between gender and work experience. a main effect of gender (male or female).

21. In a classic study of procrastination by Lay (1986), in an introductory psychology class, students received a survey that measured procrastination. Participants were instructed to complete the survey and return it to the researcher by mail. High-procrastinating partici- pants were identified by their degree of agreement with survey items like, “I often find myself performing tasks that I had intended to do days before." Interest- ingly, the researcher also measured the amount of time that it took for participants to return the survey. The following represents the number of days that some of the high procrastinators waited to return the survey: 14 15 5 2 1 2 19 6 18 a. Use a one-tailed test with a = .05 to test the hypoth- esis that high procrastinators waited more than one day to return the survey. b. Compute the 95% confidence interval for the mean amount of time required to return the survey. c. Write a sentence showing the outcome of the hypoth- esis test and the confidence…

1. One difference between ANOVA and regression is:   a) ANOVA is for statistical inference, whereas regression is not b) a regression line accounts for variability, whereas variability is not a concept in ANOVA c) in regression, we estimate a slope, whereas in ANOVA, we estimate mean differences d) ANOVA bases its inferences on samples, whereas regression bases its inferences on populations e) ANOVA and regression are not different at all, they are exactly the same f) ANOVA features p-values, whereas regression does not

15) Fine the sum of products (SP) and sum of squares (SS) for the variables of interest mentioned in the study above. Then find the correlation between the two variables of interest. (Round all answers to 2 decimal points) a) SP = b) SSbullying =  c) SSprejudice =  d) r =