# Question

You measure how much people are initially attracted to a person of the opposite sex and how anxious they become during their first date. For the following ratio data, answer the questions below.

(a) Compute the statistic that describes the relationship here.

(b) Compute the linear regression equation.

(c) What anxiety score do you predict for a person who has an attraction score of 9?

(d) When using this relationship, what is the “average” amount of error you should expect in your predictions?

(a) Compute the statistic that describes the relationship here.

(b) Compute the linear regression equation.

(c) What anxiety score do you predict for a person who has an attraction score of 9?

(d) When using this relationship, what is the “average” amount of error you should expect in your predictions?

## Answer to relevant Questions

(a) For the relationship in question 19, what is the proportion of variance accounted for? (b) What is the proportion of variance not accounted for? (c) Why is or is not this a valuable relationship? In the typical experiment, (a) Do we group the scores to summarize them, and if so how? (b) What are the two descriptive statistics we compute for the summary? (a) What is the name for SY,? (b) What does SY, tell you about the spread in the Y scores? (c) What does SY, tell you about your errors in prediction? The mean of a population of raw scores is 33 (σx = 12). Use the criterion of .05 and the upper tail of the sampling distribution to test whether a sample with X = 36.8 (N = 30) represents this population. (a) What is the ...When we compute the z-score of a sample mean, (a) What must you compute first? (b) What is its formula? (c) What is the formula for the z-score of a sample mean? (d) It describes the mean’s location among other means on ...Post your question

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