Determine the regression equation

Reference no: EM132456511

Question 1: Refer to the Baseball 2016 data, which reports information on the 2016 Major League Baseball season. Let attendance be the dependent variable and total team sal¬ary be the independent variable. Determine the regression equation and answer the following questions.

Part i. Draw a scatter diagram. From the diagram, does there seem to be a direct relation-ship between the two variables?

Part ii. What is the expected attendance for a team with a salary of $100.0 million?

Part iii. If the owners pay an additional $30 million, how many more people could they ex¬pect to attend?

Part iv. At the .05 significance level, can we conclude that the slope of the regression line is positive? Conduct the appropriate test of hypothesis.

Part v. What percentage of the variation in attendance is accounted for by salary?

Part vi. Determine the correlation between attendance and team batting average and be¬tween attendance and team ERA. Which is stronger? Conduct an appropriate test of hypothesis for each set of variables.

Question 2: Refer to the Lincolnville School bus data. Develop a regression equation that ex¬presses the relationship between age of the bus and maintenance cost. The age of the bus is the independent variable.

Part i. Draw a scatter diagram. What does this diagram suggest as to the relationship be-tween the two variables? Is it direct or indirect? Does it appear to be strong or weak?

Part ii. Develop a regression equation. How much does an additional year add to the main¬tenance cost. What is the estimated maintenance cost for a 10-year-old bus?

Part ii. Conduct a test of hypothesis to determine whether the slope of the regression line is greater than zero. Use the .05 significance level. Interpret your findings from parts (a), (b), and (c) in a brief report.

Question 3: Is there a difference in the annual divorce rates in predominantly rural counties among three geographic regions, namely, the Southwest, the Southeast, and the North¬west? Test at the .05 level. Annual divorce rates per 1,000 population for five randomly.

Attachment:- Practice Problems.rar

Attachment:- Baseball.zip

Reference no: EM132456511

Questions Cloud

Briefly explain how banks can be create money : Briefly explain how banks can be create money? Explain a demand-determined money stock?

How much is uncollectible-account expense : Uncollectible accounts are determined by the percent-of-sales method to be 4% of credit sales. How much is uncollectible-account expense for 2014

Resolve demand-pull inflation : Some economists argue that it is easier to resolve demand-pull inflation than it is cost-push inflation. Use the aggregate demand and aggregate supply

Emphasize in an attempt to differentiate : What sort of characteristics might a company emphasize in an attempt to differentiate its branded products

Determine the regression equation : Determine the regression equation - Draw a scatter diagram. From the diagram, does there seem to be a direct relation-ship between the two variables

Is the company privately or publicly owned : Is the company privately or publicly owned?Is the company part of a larger parent organization - how do they fit in the company structure?

Tradeoffs between consistency and comparability : Provide your recommendation on changing your inventory method. What are the benefits and disadvantages of switching methods?

What is clustering : Explain how "K-means" clustering work. Why is K-means clustering as a unsupervised machine learning algorithm?What is clustering

What type of goods are good a and good b : What is the cross-price elasticity for your product? What type of goods are Good A and Good B?

User Account

All Pages