Questions from Business Statistics


Q: What can the hockey coach in Exercise 2 conclude about shooting and

What can the hockey coach in Exercise 2 conclude about shooting and scoring goals from the fact that the P-value < 0.0001 for the slope of the regression line? Write a sentence in context.

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Q: Construct a 95% confidence interval for the slope of the regression

Construct a 95% confidence interval for the slope of the regression line in Exercise 1. Interpret the meaning of the interval. Be sure to state it in the context of the data and the question about the...

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Q: The coach in Exercise 2 found a 95% confidence interval for

The coach in Exercise 2 found a 95% confidence interval for the slope of his regression line. Recall that he is trying to understand how the number of goals scored is related to shots taken. Interpret...

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Q: Continuing with the data from Exercise 1, here a regression with

Continuing with the data from Exercise 1, here a regression with the percent of students who receive merit-based financial aid included in the model: Response variable is: Earn R squared=35.5% 1. Wri...

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Q: The players on the team in Exercise 2 point out to the

The players on the team in Exercise 2 point out to the coach that they can’t shoot if they are not on the ice. They add the variable TimeOnIce/Game (TOI/G) (in minutes per game) to t...

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Q: A second predictor in Exercise 13 improved the regression model of Exercise

A second predictor in Exercise 13 improved the regression model of Exercise 1, so let try a third. Here a model with average ACT score of the entering class included: Response variable is: Earn R squa...

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Q: Continuing from Exercise 14, the coach responds to the players by

Continuing from Exercise 14, the coach responds to the players by claiming that shooting accuracy is more important than time on the ice. He adds Shoot% (% of shots on goal) to the model. Response var...

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Q: Naturally, you would like to know what you are going to

Naturally, you would like to know what you are going to earn in the next few years. Explain why a regression model such as the ones we have found won’t do a very good job of such a prediction. (Sorry....

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Q: The coach we’ve been following wants to predict how many goals each

The coach we’ve been following wants to predict how many goals each of his players will score this season. Explain why a model like the ones we’ve made won’t be very successful at doing that.

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Q: A college hockey coach collected data from the 2016–2017 National

A college hockey coach collected data from the 2016–2017 National Hockey League season. He hopes to convince his players that the number of shots take...

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