# Question

The Internet Use data file on the text CD contains data on the number of individuals in a country with broadband access and the population size for each of 33 nations. When using population size as the explanatory variable, x, and broadband subscribers as the response variable, y, the regression equations is predicted broadband subscribers = 4,981,673 + 0.0308 population

a. Interpret the slope of the regression equation. Is the association positive or negative? Explain what this means.

b. Predict broadband subscribers at the (i) minimum population size x value of 7,019,731, (ii) at the maximum population size x value of 1,330,257,143.

c. For the United States, broadband subscribers = 73,206,000, and population = 310,232,863. Find the predicted broadband use and the residual for the United States. Interpret the value of this residual.

a. Interpret the slope of the regression equation. Is the association positive or negative? Explain what this means.

b. Predict broadband subscribers at the (i) minimum population size x value of 7,019,731, (ii) at the maximum population size x value of 1,330,257,143.

c. For the United States, broadband subscribers = 73,206,000, and population = 310,232,863. Find the predicted broadband use and the residual for the United States. Interpret the value of this residual.

## Answer to relevant Questions

The SAT2010 data file on the text CD contains average reading and math SAT scores for each of the 50 states and Washington D.C. Let the explanatory variable x = reading and the response variable y = math. The regression ...In an introductory statistics course, x = midterm exam score and y = final exam score. Both have mean = 80 and standard deviation = 10. The correlation between the exam scores is 0.70. a. Find the regression equation. b. ...The SAT2010 data file on the text CD contains combined average SAT scores for each of the 50 states and Washington D.C., and also the corresponding participation rate of each state. Let’s consider using the explanatory ...Using software, analyze the relationship between x = college education and y = percentage single-parent families, for the data in Table 3.6, which are in the U.S. Statewide Crime data file on the text CD. a. Construct a ...Eighth-grade math scores on the National Assessment of Educational Progress had a mean of 277 in Nebraska compared to a mean of 271 in New Jersey (H. Wainer and L. Brown, American Statistician, vol. 58, 2004, p. 119). a. ...Post your question

0