Questions from Business Statistics

Q: A survey of major universities asked what percentage of incoming freshmen usually

A survey of major universities asked what percentage of incoming freshmen usually graduate on time in 4 years. Use the summary statistics given to answer the questions that follow. 1. Would you descri...

Q: Discuss the assumptions and conditions necessary for proceeding with the regression analysis

Discuss the assumptions and conditions necessary for proceeding with the regression analysis in Exercise 1. Do you think the conditions are satisfied?

Q: Discuss the assumptions and conditions necessary for proceeding with the regression analysis

Discuss the assumptions and conditions necessary for proceeding with the regression analysis in Exercise 2. Do you think the conditions are satisfied?

Q: Using the regression output in Exercise 1, identify the residual standard

Using the regression output in Exercise 1, identify the residual standard deviation and explain what it means in the context of the problem.

Q: Using the regression output from Exercise 2, identify the residual standard

Using the regression output from Exercise 2, identify the residual standard deviation and explain its meaning with a sentence in context.

Q: Continuing with the regression of Exercise 1, write a sentence that

Continuing with the regression of Exercise 1, write a sentence that explains the meaning of the standard error of the slope of the regression line, SE(b1)=1.545, and the corresponding P-value.

Q: Shoot to score, another one Returning to the results of Exercise

Shoot to score, another one Returning to the results of Exercise 2, write a sentence to explain the meaning of the standard error of the slope of the regression line, SE(b1)=0.0125, and the correspond...

Q: Use the information in Exercise 1 to test the hypotheses H0:

Use the information in Exercise 1 to test the hypotheses H0: β1=0 vs. HA: β1‰ 0. What do you conclude about the relationship between earnings and SAT scores?

Q: 1. In the Burger King items data, use one of

1. In the Burger King items data, use one of the variables to separate the items containing meat from the items that do not contain meat, and analyze those separately. 2. Combine data about McDonald m...

Q: 1. Look up additional nutrition information about the BK items and

1. Look up additional nutrition information about the BK items and combine a file holding that information with the existing BK data. 2. Define the new variable Fat/Carb as the ratio of Fat grams to C...