# Question: Eventually for the study in question 15 Poindexter reported that

Eventually, for the study in question 15, Poindexter reported that r(8) = +.21, p > .05.

(a) What should he conclude about this relationship?

(b) What other computations should he perform to describe the relationship in these data?

(c) What statistical goal described in this chapter should he be concerned with?

(d) Identify three problems with his study.

(e) Why will correcting these problems improve his study?

(a) What should he conclude about this relationship?

(b) What other computations should he perform to describe the relationship in these data?

(c) What statistical goal described in this chapter should he be concerned with?

(d) Identify three problems with his study.

(e) Why will correcting these problems improve his study?

## Answer to relevant Questions

A scientist suspects that as a person’s stress level changes, so does the amount of his or her impulse buying. With N = 72, his r is + .38. (a) What are H0 and H0? (b) With a = .05, what is rcrit? (c) Report these results ...(a) How would you report your results if a = .05, N = 43, and tobt = +6.72 is significant? (b) How would you report your results if a = .05, N = 6, and tobt = -1.72 is not significant? (a) What does a correlation coefficient tell you? (b) When do you compute r? (c) When do you compute rS? (d) When is linear regression used? Say that you have a sample mean of 44 in a study. (a) Estimate the corresponding µ using point estimation. (b) What would a confidence interval for this µ tell you? (c) Why is computing a confidence interval better than ...You investigate whether the older or younger male in pairs of brothers tends to be more extroverted. You obtain the following extroversion scores: (a) What are H0 and Ha? (b) Compute tobt (c) With a = .05, what is tcrit? (d) ...Post your question