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Unit 3 Minitab Question 1: A study conducted at the local elementary school wants to see if providing lunch will increase test scores. The previous year's average test score is 65. Before fully implementing this expensive proposal, a random sample of 10 students were given hot breakfasts for a week and then given the same standardized test. Test Scores 65 75 58 80 95 60 88 85 70 73 a. State the null hypothesis and the alternative hypothesis in words. b. State the null and experimental hypotheses in symbols. c. Why is this a good use of the 1-sample t-test? d. Identify the Independent Variable (IV) and Dependent Variable (DV). e. Conduct the statistical analysis using Minitab. f. Conclusions? Reject or fail to reject the null? g. Explain the confidence interval and the direction of the effect. h. Check the assumption of normality

Unit 3 Minitab Question 1: A study conducted at the local elementary school wants to see if providing lunch will increase test scores. The previous year's average test score is 65. Before fully implementing this expensive proposal, a random sample of 10 students were given hot breakfasts for a week and then given the same standardized test. Test Scores 65 75 58 80 95 60 88 85 70 73 a. State the null hypothesis and the alternative hypothesis in words. b. State the null and experimental hypotheses in symbols. c. Why is this a good use of the 1-sample t-test? d. Identify the Independent Variable (IV) and Dependent Variable (DV). e. Conduct the statistical analysis using Minitab. f. Conclusions? Reject or fail to reject the null? g. Explain the confidence interval and the direction of the effect. h. Check the assumption of normality

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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Unit 3 Minitab tcc.instructure.com Question 1: A study conducted at the local elementary school wants to see if providing lunch will increase test scores. The previous year's average test score is 65. Before fully implementing this expensive proposal, a random sample of 10 students were given hot breakfasts for a week and then given the same standardized test. Test Scores 65 75 58 80 95 95 60 60 88 85 70 73 a. State the null hypothesis and the alternative hypothesis in words. b. State the null and experimental hypotheses in symbols. c. Why is this a good use of the 1-sample t-test? d. Identify the Independent Variable (IV) and Dependent Variable (DV). e. Conduct the statistical analysis using Minitab. f. Conclusions? Reject or fail to reject the null? g. Explain the confidence interval and the direction of the effect. h. Check the assumption of normality Question 2: To motivate citizens to conserve gasoline, a local government is considering mounting a conservation campaign. Based on previous data, the government knows that the average family uses 58 gallons per month. The following data are collected from a random sample of 9 families after the advertising campaign: Gas (gal/month) 50 63 51 58 51 59 60 51 47 Answer questions (a)-(h) above.
Transcribed Image Text:Unit 3 Minitab tcc.instructure.com Question 1: A study conducted at the local elementary school wants to see if providing lunch will increase test scores. The previous year's average test score is 65. Before fully implementing this expensive proposal, a random sample of 10 students were given hot breakfasts for a week and then given the same standardized test. Test Scores 65 75 58 80 95 95 60 60 88 85 70 73 a. State the null hypothesis and the alternative hypothesis in words. b. State the null and experimental hypotheses in symbols. c. Why is this a good use of the 1-sample t-test? d. Identify the Independent Variable (IV) and Dependent Variable (DV). e. Conduct the statistical analysis using Minitab. f. Conclusions? Reject or fail to reject the null? g. Explain the confidence interval and the direction of the effect. h. Check the assumption of normality Question 2: To motivate citizens to conserve gasoline, a local government is considering mounting a conservation campaign. Based on previous data, the government knows that the average family uses 58 gallons per month. The following data are collected from a random sample of 9 families after the advertising campaign: Gas (gal/month) 50 63 51 58 51 59 60 51 47 Answer questions (a)-(h) above.
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