# Question

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 equation is ŷ = 18.1 + 0.975x.

a. California had an average reading score of 501. Use the regression equation to predict the average math score for California.

b. Calculate the residual associated with California and comment on its value in the context of the problem.

c. Does it appear that a state’s average reading score is a reliable predictor of its average math score?

a. California had an average reading score of 501. Use the regression equation to predict the average math score for California.

b. Calculate the residual associated with California and comment on its value in the context of the problem.

c. Does it appear that a state’s average reading score is a reliable predictor of its average math score?

## Answer to relevant Questions

A study in 2000 by the National Highway Traffic Safety Administration estimated that failure to wear seat belts led to 9200 deaths in the previous year, and that the number of deaths would decrease by 270 for every 1 ...Example 9 related y = team scoring (per game) and x = team batting average for American League teams. For National League teams in 2010, ŷ = -6.25 + 41.5x. a. The team batting averages fell between 0.242 and 0.272. Explain ...The SPSS figure shows the data and regression line for the 50 states in Table 3.6 relating x = percentage of single-parent families to y = annual murder rate (number of murders per 100,000 people in the population). a. The ...Let x = sodium and y = sugar for the breakfast cereal data in the Cereal data file on the text CD and in Table 2.3 in Chapter 2. a. Construct a scatterplot. Do any points satisfy the two criteria for a point to be ...A survey of 1000 adult Americans ( Rasmussen Reports , April 15, 2004) asked each whether the best way to fight terrorism is to let the terrorists know we will fight back aggressively or to work with other nations to find an ...Post your question

0