{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

1-20chapter stats

# A ss error b total variance c ms error d explained

This preview shows page 1. Sign up to view the full content.

This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ion 72. A _______________ is a method or a process of estimating a relationship between a dependent variable (Y) and a single independent variable (X). A. Chi-square analysis B. Simple linear regression analysis C. One-way ANOVA D. Correlation analysis AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Easy Learning Objective: 1 Topic: Simple Linear Regression 73. A ______________________ measures the strength of the relationship between a dependent variable (Y) and an independent variable (X). A. Coefficient of determination B. Correlation coefficient C. Slope D. Standard error AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Easy Learning Objective: 6 Topic: Correlation 1-1230 Chapter 01 - An Introduction to Business Statistics 74. If the points are tightly distributed around the regression line on a scatter diagram, then we can conclude that the changes in the value of the dependent variable _________ the independent variable (X). A. have no relationship with B. are explained by C. always inversely related to D. always positively related to AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 1 Topic: Simple Linear Regression 75. After plotting the data point s on a scatter diagram, we have observed an inverse relationship between the independent variable (X) and the dependent variable (Y). Therefore, we can expect both the sample slope and the __________ to be a negative value. A. Coefficient of determination B. Correlation coefficient C. Slope D. Standard error AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Learning Objective: 6 Topic: Correlation 1-1231 Chapter 01 - An Introduction to Business Statistics 76. Use the following results obtained from a simple linear regression analysis with 12 observations. = 37.2895 - (1.2024) X 2 r = .6744 sb = .2934 Test to determine if there is a significant negative relationship between the independent and dependent variable at α = .05. Give the test statistic and the resulting conclusion. A. Reject H0, t = -4.10 B. Fail to reject H0, t = 4.10 C. Reject H0, t = -1.783 D. Fail to reject H0, t = 1.783 There is a significant negative relationship between dependent and independent variable. AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 4 Topic: Significance of the slope 1-1232 Chapter 01 - An Introduction to Business Statistics 77. An experiment was performed on a certain metal to determine if the strength is a function of heating time. Results based on 10 metal sheets are given below. Use the simple linear regression model. = 30 = 104 = 40 = 178 = 134 Find the estimated y-intercept. A. 1 B. 4.45 C. 10.04 D. 1.289 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 2 Topic: Simple Linear Regression 1-1233 Chapter 01 - An Introduction to Business Statistics 78. An experiment was performed on a certain metal to determine if the strength is a function of heating time. Results based on 10 metal sheets are given below. Use the simple linear regression model. = 30 = 104 = 40 = 178 = 134 Find the estimated y intercept and slope and write the equation of the least squares regression line. A. 14 - 68x B. 2 + 0x C. 0 + 1x D. 1 + 1x AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 2 Topic: Simple Linear Regression 1-1234 Chapter 01 - An Introduction to Business Statistics 79. An experiment was performed on a certain metal to determine if the strength is a function of heating time. Results based on 10 metal sheets are given below. Use the simple linear regression model. = 30 = 104 = 40 = 178 = 134 Determine SSE, SS (Total) A. 10, 14 B. 4, 18 C. 14, 18 D. 17, 18 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 3 Topic: Simple Linear Regression 1-1235 Chapter 01 - An Introduction to Business Statistics 80. An experiment was performed on a certain metal to determine if the strength is a function of heating time. Results based on 10 metal sheets are given below. Use the simple linear regression model. = 30 = 104 = 40 = 178 = 134 Determine the value of the F statistic. A. 28 B. 7 C. 14 D. 12.6 F = 28 AACSB: Analytic Bloom's: Application Difficulty: Hard Learning Objective: 8 Topic: Simple Linear Regression 1-1236 Chapter 01 - An Introduction to Business Statistics 81. An experiment was performed on a certain metal to determine if the strength is a function of heating time. Results based on 10 metal sheets are given below. Use the simple linear regression model. = 30 = 104 = 40 = 178 = 134 Determine the standard error. A. 3.74 B. 0.707 C. 2.65 D. 0.500 s = .707 AACSB: Analytic Bloom's: Application Difficulty: Medium Learning Objective: 3 Topic: Simple Linear Regression 1-1237 Chapter 01 - An Introduction to Business Statistics 82. An experiment was performed on a certain metal to determine if the strength is a function of heating time. Results based on 10 metal sheets are given below. Use the simple linear regression model. = 30 = 104 = 40 = 178 = 134 Find the t statistic and test H0: B1 ≤ 0 vs. Ha: B1 > 0 at α = .05. A. t = 1.414, fail to reject null hypothesis B. t = 6.00, reject nu...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online