# Question

Problem 9 examined the relationship between weight and income for a sample of n = 10 women. Weights were classified in five categories and had a mean of

M = 3 with SS = 20. Income, measured in thousands, had a mean score of M = 66 with SS = 7430, and SP = 2359.

a. Find the regression equation for predicting income from weight. (Identify the income scores as X values and the weight scores as Y values.)

b. What percentage of the variance in the income is accounted for by the regression equation?

(Compute the correlation, r, then find r2.)

c. Does the regression equation account for a significant portion of the variance in income?

Use a = .05 to evaluate the F-ratio.

M = 3 with SS = 20. Income, measured in thousands, had a mean score of M = 66 with SS = 7430, and SP = 2359.

a. Find the regression equation for predicting income from weight. (Identify the income scores as X values and the weight scores as Y values.)

b. What percentage of the variance in the income is accounted for by the regression equation?

(Compute the correlation, r, then find r2.)

c. Does the regression equation account for a significant portion of the variance in income?

Use a = .05 to evaluate the F-ratio.

## Answer to relevant Questions

The regression equation is computed for a set of n = 18 pairs of X and Y values with a correlation of r = 180 and SSY = 100. a. Find the standard error of estimate for the regression equation. b. How big would the standard ...For the following scores, a. Sketch a scatter plot and estimate the value of the Pearson correlation. b. Compute the Pearson correlation. Research has demonstrated strong gender differences in teenagers' approaches to dealing with mental health issues (Chandra & Minkovitz, 2006). In a typical study, eighth-grade students are asked to report their willingness ...Güven, Elaimis, Binokay, and Tan (2003) studied the distribution of paw preferences in rats using a computerized food-reaching test. For a sample of n = 144 rats, they found 104 right-handed animals. Is this significantly ...Automobile insurance is much more expensive for teenage drivers than for older drivers. To justify this cost difference, insurance companies claim that the younger drivers are much more likely to be involved in costly ...Post your question

0