Blog

The operating expenses of a distributor were 38% of gross sales. If the operating expenses were $4,250.00, what were the gross sales? 

The cosmic law of business says you can profitably excel by doing any two of three things.  Which is not one of those things?

Camille’s objective is to understand the sommeliers’ wine rating system. Although she is using a dataset that is based on ratings for a selection of wines for this purpose, she hopes to make general claims about how different factors impact wine rating. Which of the following is true about her objective?

Which of the following is a correct interpretation of the coefficient on generalmills in the multivariate regression context? Recall that generalmills is an indicator variable, which means that it equals 1 for all observations on general mills’ products, and equals 0 for observations on products from other cereal brands.  Read all options carefully.

If fixed acidity increases by 1 unit, then holding all other variables fixed, what is the impact on the wine quality? Use alpha=0.10.

How many of the regression coefficients in Camille’s model are statistically significant at the 0.10 level?

If alcohol content decreases by 5 units, then holding all other variables fixed, what is the impact on the wine quality? Use alpha=0.10. Note that the question is about the impact of an an x-variable decreasing, and not increasing. Be careful about the direction of impact.

The wine quality variable in the dataset contains scores between 1 (low quality) to 7 (high quality). What type of variable is this?

When calculating the interest paid to a lender on a loan, at the same percentage rate, which of the following would cost the borrower less money on a loan held for two years?

Gross Margin Return on Investment is: