Lizzie Takes 20 Seconds to Stuff an Envelope and 10

question 46

Multiple Choice

Lizzie takes 20 seconds to stuff an envelope and 10 seconds to seal it. Arnold takes 15 seconds to stuff an envelope and 5 seconds to seal it. Lizzie has a comparative advantage in and Arnold has a comparative advantage in .

• A) stuffing envelopes; sealing them
• B) neither of these activities; both activities
• C) both activities; neither of these activities
• D) sealing envelopes; stuffing them

---

Definitions:

Determination

In statistics, determination often refers to the coefficient of determination, which measures the proportion of variance in a dependent variable predictable from an independent variable.

Estimated Regression

A statistical method used to predict the value of a dependent variable based on the values of one or more independent variables.

SSR

Sum of Squares due to Regression, a measure in statistics used to quantify the variance explained by a regression model.