# Question: In an attempt to determine whether a linear relationship exists

In an attempt to determine whether a linear relationship exists between the price of a home and the number of days it takes to sell the home, a real estate agent collected the following data from recent sales in his city.

a. Calculate the covariance. What kind of linear relationship exists?

b. Calculate the correlation coefficient. Comment on the strength of the linearrelationship.

a. Calculate the covariance. What kind of linear relationship exists?

b. Calculate the correlation coefficient. Comment on the strength of the linearrelationship.

## Relevant Questions

The director of graduate admissions at a local university is analyzing the relationship between scores on the Graduate Record Examination (GRE) and subsequent performance in graduate school, as measured by a student’s ...The following table shows the annual returns (in percent) for Fidelity’s Electronic and Utilities funds.a. Calculate the sample mean, the sample variance, and the sample standard deviation for each fund.b. Which fund had ...American football is the highest paying sport on a per-game basis. Given that the quarterback is considered the most important player on an NFL team, he is typically well-compensated. Consider a portion of the following ...Consider a bell-shaped distribution with a mean of 750 and a standard deviation of 50. There are 500 observations in the data set.a. What percentage of the observations are less than 700?b. Approximately how many ...Consider the following data:1 = 25.7 2 = 30.6σ21 = 98.2 σ22 = 87.4n1 = 20 n2 = 25a. Construct a 95% confidence interval for the difference between the population means.b. Specify the competing hypotheses in order to ...Post your question