Reference no: EM13912088
INSTRUCTIONS: You are to work independently on this assignment. Each question involves statistical inference regarding bivariate relationships. In addition to providing relevant MINITAB 17 output, clearly state your conclusion within the context of the question. Use the Help feature in MINITAB 17 to read descriptions for the data sets. This assignment is worth 50 points.
1. Use the data set OPENHOUSE.MTW in the Student 14 folder. Perform the Chi Square test for independence to determine whether style of home and location are related. Use α = 0.05. Explain your results.
2. Use the data set SALARY.MTW in the Student12 folder. Perform the Chi
Square test for independence to determine whether gender and department are related. Use . Explain your results.
3. Use the data set SCHOOLSDATA.MTW in the Student 14 folder.
(a) Is dropout rate significant in explaining the percentage of students going to college (%College) at ? Explain your conclusion.
(b) Display the 95% confidence interval on the fitted line plot. To do this go to STAT > Regression > Fitted Line Plot > Options > check Display confidence interval.
(c) Display the 95% prediction interval on the fitted line plot. Follow the same steps in part (b) except check Display prediction interval.
(d) Discuss how the intervals differ from each other and why.
(e) Construct residual plots for this model and interpret.
(f) Is average SAT verbal score significant in explaining the percentage of students going to college (%College) at ? Is this a better independent variable to use than dropout rate? Explain your conclusion.
(e) Construct residual plots for this model and interpret.
Attachment:- Assignment.zip
|
Identify three specific factors about bfa
: Assume you are an investor in BFA. As an investor, what type of information would you be interested in reviewing before making an investment in BFA? Do you believe that BFA should have been exempt from Arizona banking laws? Why or why not?
|
|
Concentration of the sodium benzoate
: Benzoic acid, C6H5COOH, is a weak acid with Ka = 6.46 × 10-5. If 40.00mL of 0.100 M benzoic acid were mixed with 10.00mL of 0.200M sodium hydroxide. Bearing in mind the assumptions mentioned in the last part of the introduction, calculate
|
|
Interest-bearing debentures
: At the beginning of the year, Global Minds Inc. issued $100 million (maturity value) of 20-year debentures.Calculate the proceeds received by Global Minds when the bonds were sold.
|
|
Develop a frequency distribution of overall design quality
: Develop a frequency distribution of the overall mechanical quality ratings. Describe the distribution. Develop a relative frequency distribution of the overall design quality ratings. Describe the distribution.
|
|
Discuss how the intervals differ from each other and why
: Display the 95% prediction interval on the fitted line plot. Follow the same steps in part (b) except check Display prediction interval. Discuss how the intervals differ from each other and why. Construct residual plots for this model and interpr..
|
|
Invested into the employees account
: If an individual earning $50,000 per year has an opportunity to participate in an employee sponsored.How much per year will be invested into the employees account.
|
|
Construct a percentage pie chart of overall design quality
: Construct a percentage pie chart of the overall design quality ratings for each of the following: automobiles of United States origin; automobiles of Pacific Rim origin.
|
|
Construct a contingency table of automobile origin
: Construct a contingency table of automobile origin versus overall mechanical quality rating. Set up rows corresponding to the United States, the Pacific Rim (Japan/Korea), and Europe.
|
|
Calculate the percent yield of reaction
: When 4.00 moles of lithium react with excess oxygen, the theoretical yield of lithium oxide is 59.764 g. The reaction is performed, and 16.99 grams of lithium oxide are obtained. Calculate the percent yield of this reaction.
|