What is labeled 2 on this figure?

If the correlation between X and Y is -.72, approximately what percentage of the variance in Y can be explained by X?

Below is the formula sheet with the left-hand sides included.   

When a researcher is attempting to predict sales volume by using building permits, amount of advertising, and the income levels of residents, the researcher is using:

How many degrees of freedom are there in a nine-cell (3×3) Chi-square test?​

If Erin has ONE continuous dependent variables with two categorical independent variables, which of the following analysis tools does she have to use?

In using the t-test to compare the means of two groups, the alternative hypothesis is typically stated as _____________.​

Suppose that you are using a 9-point rating scale to compare men who have an annual income over $50,000 (Group 1) with men who have an annual income less than or equal to $50,000 (Group 2) with regard to their assessment of a new product. There are forty men in Group 1 and they have a mean of 7 and a standard deviation of 2.5, while the 35 men in Group 2 have a mean of 5 and a standard deviation of 1.4. What is the approximate value of t using the t-test?​

On what x intervals is the following function concave down? f(x)=-3×3+18×2+166x-4{“version”:”1.1″,”math”:”f(x)=-3×3+18×2+166x-4″}

Record the journal entry for the issuance of the note on December 1, 2016.  Use the following account headings in your response:                                Accounts                                                           Debit         Credit