# Question: A researcher took a sample of 25 electronics companies and

A researcher took a sample of 25 electronics companies and found the following relationship between x and y, where x is the amount of money (in millions of dollars) spent on advertising by a company in 2011 and y represents the total gross sales (in millions of dollars) of that company for 2011.

ŷ = .36 + 11.75x

a. An electronics company spent $2 million on advertising in 2011. What are its expected gross sales for 2011?

b. Suppose four electronics companies spent $2 million each on advertising in 2011. Do you expect these four companies to have the same actual gross sales for 2011? Explain.

c. Is the relationship between x and y exact or non-exact?

ŷ = .36 + 11.75x

a. An electronics company spent $2 million on advertising in 2011. What are its expected gross sales for 2011?

b. Suppose four electronics companies spent $2 million each on advertising in 2011. Do you expect these four companies to have the same actual gross sales for 2011? Explain.

c. Is the relationship between x and y exact or non-exact?

**View Solution:**## Answer to relevant Questions

A researcher took a sample of 10 years and found the following relationship between x and y, where x is the number of major natural calamities (such as tornadoes, hurricanes, earthquakes, floods, etc.) that occurred during a ...The following table gives the total payroll (in millions of dollars) on the opening day of the 2011 season and the percentage of games won during the 2011 season by each of the National League baseball teams. a. Find the ...The following table gives information on the calorie count and grams of fat for the 11 types of bagels produced by Panera Bread. With calories as the dependent variable and fat content as the independent variable, find the ...The following information is obtained for a sample of 16 observations taken from a population. SSxx = 340.700, se = 1.951, and ŷ = 12.45 + 6.32x a. Make a 99% confidence interval for B. b. Using a significance level of ...The following table, reproduced from Exercise 13.28, lists the percentages of space for eight magazines that contain advertisements and the prices of these magazines. a. Construct a 98% confidence interval for B. You can use ...Post your question