/Downloads/Correlation%20Coefficient%20Exercise.pdf Correlation and Linear Regression 471 2. The following sample observations were randomly selected X 5 13 3 3 15 5 7 4 13 4 11 6 9 5 Determine the correlation client and pretter between X and Y. 3. B. Aplance Super Store has outlets in several large metropolitan areas in New England The generales manager aired a commercial for a digital camera on selected local TV stations prior to a sale starting on Saturday and ending Sunday. She obtained the info mation for Saturday-Sunday digital camera sies at the various outlets and paired it with the number of times the advertisement was shown on the local TV stations. The purpose to find whether there is any relationship between the number of times the advertise ment was tired and digital cameras. The pairings are Location of TV Number of Saturday Sunday Sales 15 thousands What dependent var? Decoration Notes Sho O ti e hp) 8 Mort so delete To & 6 7 8 C 9 o backspace TMT Sock { U o [ 7 home J K K enter 4 wnloads Springfield New Haven 2 5 5 3 21 24 17 Hartford a. What is the dependent variable? b. Draw a scatter diagram. c. Determine the correlation coefficient d. Interpret these statistical measures 4. The production department of Cotronics International wants to explore the relationship between the number of employees who assemble a subassembly and the number produced As an experiment, two employees were assigned to assemble the subassemblies. They pro- duoed 15 during a one-hour period. Then four orrployees assembled them. They produced 25 during a one hour period. The complete set of paired observations follows. Number of Assemblies One How Production Juni 15 25 4 5 30 The dependent is production assumed that different levels of pro duction result from a rentrumber of my 3. Drws scattering b. Based on the diagram does there to be any relationship between the uber of embers and proton Explain 0. Comoure the correlation coefficient 8. They come considering increasing the number of police in an 15. Before anal decision, the counce the chief of porce De 10 de minerons between the and doc o E 92 hp bort se delete TVC & 6 7 8 C 9 O backspace num lock Y U o [ ] 7 home dict College 360 X > Benedict College 1360 X > Correlation coefficient X C Search Textbook Solutix + T Article Spinning Text R X nedict%20College/Downloads/Correlation%20CoefficientX20Exercise.pdf 2 / 2 Chapter 13 of police and the number of crimes reported. The chief gathered the following Information Number of Crimes 15 17 25 Number of 17 13 5 17 Cary 11 a. Which variable is the decadent variable and which is the independent wat you were the Chief of Police, which we would you decide? Which The doma Decoration cont concert. Dort sure you that the concert gatve? of a car and we wisdom of 13 secas der during your C ch o hop 1e worse delete To 5 6 & 7 C 00 9 Sock T . Y T { ) O [ G H J . L enter /Downloads/Correlation%20Coefficient%20Exercise.pdf Correlation and Linear Regression 471 2. The following sample observations were randomly selected X 5 13 3 3 15 5 7 4 13 4 11 6 9 5 Determine the correlation client and pretter between X and Y. 3. B. Aplance Super Store has outlets in several large metropolitan areas in New England The generales manager aired a commercial for a digital camera on selected local TV stations prior to a sale starting on Saturday and ending Sunday. She obtained the info mation for Saturday-Sunday digital camera sies at the various outlets and paired it with the number of times the advertisement was shown on the local TV stations. The purpose to find whether there is any relationship between the number of times the advertise ment was tired and digital cameras. The pairings are Location of TV Number of Saturday Sunday Sales 15 thousands What dependent var? Decoration Notes Sho O ti e hp) 8 Mort so delete To & 6 7 8 C 9 o backspace TMT Sock { U o [ 7 home J K K enter 4 wnloads Springfield New Haven 2 5 5 3 21 24 17 Hartford a. What is the dependent variable? b. Draw a scatter diagram. c. Determine the correlation coefficient d. Interpret these statistical measures 4. The production department of Cotronics International wants to explore the relationship between the number of employees who assemble a subassembly and the number produced As an experiment, two employees were assigned to assemble the subassemblies. They pro- duoed 15 during a one-hour period. Then four orrployees assembled them. They produced 25 during a one hour period. The complete set of paired observations follows. Number of Assemblies One How Production Juni 15 25 4 5 30 The dependent is production assumed that different levels of pro duction result from a rentrumber of my 3. Drws scattering b. Based on the diagram does there to be any relationship between the uber of embers and proton Explain 0. Comoure the correlation coefficient 8. They come considering increasing the number of police in an 15. Before anal decision, the counce the chief of porce De 10 de minerons between the and doc o E 92 hp bort se delete TVC & 6 7 8 C 9 O backspace num lock Y U o [ ] 7 home dict College 360 X > Benedict College 1360 X > Correlation coefficient X C Search Textbook Solutix + T Article Spinning Text R X nedict%20College/Downloads/Correlation%20CoefficientX20Exercise.pdf 2 / 2 Chapter 13 of police and the number of crimes reported. The chief gathered the following Information Number of Crimes 15 17 25 Number of 17 13 5 17 Cary 11 a. Which variable is the decadent variable and which is the independent wat you were the Chief of Police, which we would you decide? Which The doma Decoration cont concert. Dort sure you that the concert gatve? of a car and we wisdom of 13 secas der during your C ch o hop 1e worse delete To 5 6 & 7 C 00 9 Sock T . Y T { ) O [ G H J . L enter
