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Interpret the correlation coefficient, explain what the number
means
Data obtained:
Fa 2 CTol 2 io-12...
Determine the Pearson product-moment correlation coefficient for the following data. x 1 12 9 7 4...
Determine the Pearson product-moment correlation coefficient for the following data. x 1 12 9 7 4 3 2 y 8 4 6 5 7 7 9
Using the data in the frequency table below compute the correlation coefficient between advertising expenditure and sales. The data represent the number of months in which advertising expenditure was in a particular class AND sales were in a certain range
Using the data in the frequency table below compute the correlation
coefficient between advertising expenditure and sales. The data represent
the number of months in which advertising expenditure was in a particular
class AND sales were in a certain range. (17)
(c) Interpret the result, explaining what the coefficient of determination means
and how it can be used. (2) [20]
Sales (R'000s)
10-19 20-29 30-39 40-49 50-59
100-199 12 3 0 2 0
Ad. expend. 200-299 0 8 3 4...
1. Compute r, the correlation coefficient for the following set of bivariate data. Is this correlation...
1. Compute r, the correlation coefficient for the following set of bivariate data. Is this correlation significant? (Use = 0.05). x 1 2 3 4 5 y 2 3 6 8 9 2. Hello, For my own reference can you also explain how one goes about solving? Thanks!
this is the question a. The correlation coefficient between the number of students and marks obtained...
this is the question
a. The correlation coefficient between the number of students and marks obtained in end semester exam. (13 Marks) Give the statistical meaning of the relationship between the number of students and marks b. obtained in end semester exam. (3 Marks) Draw the number of students and marks obtained in end semester exam scatter diagram c. (4 Marks) Check list Write your name and ID corectly Write the question number properly Use your own calculator. Show all...
what is the p value The accompanying data have a sample correlation coefficient, rounded to three...
what is the p value
The accompanying data have a sample correlation coefficient, rounded to three decimal places, of -0.673. Perform a hypothesis test with the data to determine if the population correlation coefficient p is less than zero using a 0.01 5 2 6 X y 8 5 4 6 5 8 9 9 Hy pro H. p 0 OA. Ho pso Hyp> 0 . Ho pao H, p<0 D. Ho po H, PAD What is the test statistic?...
(Three correlation coefficient if the following data is collected? The variables are number of cigarettes smoked...
(Three correlation coefficient if the following data is collected? The variables are number of cigarettes smoked and level of questions Thirty points). Sarah wants to find out the correlation between smoking cigarettes and being introverted. What is the introversion. Assume that introversion is interval in scale. Cig. Intro. 7 11 2 12 9 15 4. Of the five data points in the previous question, which one indicates a negative relationship? 5-6. (Two questions - Twenty points). Let's return to the...
12.3 Correlation Coefficient Calculation Based on the data shown below, calculate the correlation coefficient r (to...
12.3 Correlation Coefficient Calculation Based on the data shown below, calculate the correlation coefficient r (to three decimal places) 5 24 6 17 7 18 8 15 9 10 10 9 Get help: Read Points possible: 1 This is attempt 1 of 3. Message instructor about this question
12.3 Correlation Coefficient Calculation Based on the data shown below, calculate the correlation coefficient r (to...
12.3 Correlation Coefficient Calculation Based on the data shown below, calculate the correlation coefficient r (to three decimal places) 3 14 4 17 5 19 6 23 7 24 8 31 Get help: Read Points possible: 1 This is attempt 1 of 3. Message instructor about this question
12. (20 pts) Compute the linear correlation coefficient of the following set of data points: X...
12. (20 pts) Compute the linear correlation coefficient of the following set of data points: X y 19 1 4 18 14 5 6 9 6 1 Use formula to find the linear correlation coefficient.
17. Explain how you found the linear correlation coefficient. Find the value of the linear correlation...
17. Explain how you found the linear correlation
coefficient.
Find the value of the linear correlation coefficient r. Points: 5 17) The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. Hours 5 10 4 6 10 9 Score 64 86 69 86 59 87 D) 0.224 C) 0.678 B) -0.678 A) -0.224 Explain how you found the linear correlation coefficient.
this is the question
a. The correlation coefficient between the number of students and marks obtained in end semester exam. (13 Marks) Give the statistical meaning of the relationship between the number of students and marks b. obtained in end semester exam. (3 Marks) Draw the number of students and marks obtained in end semester exam scatter diagram c. (4 Marks) Check list Write your name and ID corectly Write the question number properly Use your own calculator. Show all...
what is the p value
The accompanying data have a sample correlation coefficient, rounded to three decimal places, of -0.673. Perform a hypothesis test with the data to determine if the population correlation coefficient p is less than zero using a 0.01 5 2 6 X y 8 5 4 6 5 8 9 9 Hy pro H. p 0 OA. Ho pso Hyp> 0 . Ho pao H, p<0 D. Ho po H, PAD What is the test statistic?...
(Three correlation coefficient if the following data is collected? The variables are number of cigarettes smoked and level of questions Thirty points). Sarah wants to find out the correlation between smoking cigarettes and being introverted. What is the introversion. Assume that introversion is interval in scale. Cig. Intro. 7 11 2 12 9 15 4. Of the five data points in the previous question, which one indicates a negative relationship? 5-6. (Two questions - Twenty points). Let's return to the...
12.3 Correlation Coefficient Calculation Based on the data shown below, calculate the correlation coefficient r (to three decimal places) 5 24 6 17 7 18 8 15 9 10 10 9 Get help: Read Points possible: 1 This is attempt 1 of 3. Message instructor about this question
12.3 Correlation Coefficient Calculation Based on the data shown below, calculate the correlation coefficient r (to three decimal places) 3 14 4 17 5 19 6 23 7 24 8 31 Get help: Read Points possible: 1 This is attempt 1 of 3. Message instructor about this question
12. (20 pts) Compute the linear correlation coefficient of the following set of data points: X y 19 1 4 18 14 5 6 9 6 1 Use formula to find the linear correlation coefficient.
17. Explain how you found the linear correlation
coefficient.
Find the value of the linear correlation coefficient r. Points: 5 17) The paired data below consist of the test scores of 6 randomly selected students and the number of hours they studied for the test. Hours 5 10 4 6 10 9 Score 64 86 69 86 59 87 D) 0.224 C) 0.678 B) -0.678 A) -0.224 Explain how you found the linear correlation coefficient.
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