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Jose 7 4 10. The Academic Dean of NCC believes there may be a positive linear...
10. The Academic Dean of NCC believes there may be a positive linear relationship between the...
10. The Academic Dean of NCC believes there may be a positive linear relationship between the number of recitations attended by a student during a semester, and the grade received in the course. The following table gives a sample of 12 students' number of recitations attended and their corresponding grades. Student Grade Number of recitations 3 7 Thomas Jose Joe Maria Susan Peter Bella Tyrone Raul Tueta 4 11 13 7 82 90 80 92 90 77 71 68 2...
The following data represents the number of days absent and the final grade for a sample...
The following data represents the number of days absent and the final grade for a sample of college students in a general education course at a large state university. 0 1 2 3 4 5 6 7 8 9 No. of absences Final Grade 89.2 86.4 83.5 81.1 78.2 73.9 64.3 71.8 65.5 66.2 a) Which variable is the explanatory variable? b) Draw a scatter plot and describe your scatter plot (Direction, Strength, Form). c) Compute the correlation coefficient d)...
1. The following data represents the number of days absent and the final grade for a...
1. The following data represents the number of days absent and the final grade for a sample of college students in a general education course at a large state university. No. of absences 0 1 2 3 4 5 6 7 8 9 Final Grade 89.2 86.4 83.5 81.1 78.2 73.9 64.3 71.8 65.5 66.2 a) Which variable is the explanatory variable? b) Draw a scatter plot and describe your scatter plot (Direction, Strength, Form). c) Compute the correlation coefficient....
The table below gives the number of hours ten randomly selected students spent studyling and their...
The table below gives the number of hours ten randomly selected students spent studyling and their corresponding midterm exam grades. Using this data, consider the equation of the regression line, -bo +bix, for predicting the midterm exam grade that a student will earn based on the number of hours spent studying. Keep in mind, the correlation coefficient may or may not be statistically significant for the data given. Remember, in practice, it would not be appropriate to use the regression...
A. Find the linear correlation coefficient. B. Find the least-squares regression line. C.Using the model above,...
A. Find the linear correlation coefficient.
B. Find the least-squares regression line.
C.Using the model above, predict grade for 22 absences.
Note: Please, if you use any values from the tables, indicate
which table they come from. Also, please write clearly on a piece
of paper.
The data set below is on student absences and final grade. Sludem untudcat Student | Number of absences x | Final grade y (%) 82 86 43 74 58 90 78 15 12 Assume...
Note : the answer should be computerized please Question 2. linear Regr ession (5Marks) The following...
Note : the answer should be computerized
please
Question 2. linear Regr ession (5Marks) The following data are the monthly salaries Y and the grade point averages X for students who obtained a bachelor's degree in business administration. GPA X 2.6 3.4 3.6 3.2 3.5 2.9 Salary Y, S3300 S3600 S4000 S3500 S3900 $3600 Answer all the following questions 1) Develop a scatter diagram for these data. (1 mark) 2) Is there any relationship between GPA and Salary? (1 mark)...
Q4. Professor Video, a college psychology instructor, wants to determine if there is a negative linear...
Q4. Professor Video, a college psychology instructor, wants to determine if there is a negative linear correlation between a student's GPA and the number of hours a student spends playing video games per week. She randomly selected twenty students from all her classes and determined their number of hours playing video games per week and their GPA. The sample results were: GPA: 4.00 2.50 3.95 3.90 3.80 2.90 3.10 3.25 1.35 4.00 Hrs Playing:0 15 3 5 0 13 87...
10. A random sample of boarding school students was asked how many 8-ounce servings of soda...
10. A random sample of boarding school students was asked how many 8-ounce servings of soda they had consumed on a certain Sunday and how many hours of sleep they got that night. Their responses are displayed in the scatter plot below. Soda Sleep 0 6 0 8 1 6 1 7 2 7 3 5 3 8 4 6 5 5 6 3 6 6 7 4 7 6 8 3 10 2 a) Which variable has been used...
A popular, nationwide standardized test taken by high-school juniors and seniors may or may not m...
A popular, nationwide standardized test taken by high-school juniors and seniors may or may not measure academic potential, but we can nonetheless exarmiune the relationship between scores on thos test and peroracen measure academie potental. but We have chosen a random sample of fifteen students just finishing their first year of college, and for each student we've recorded her score on this standardized test (from 400 to 1600) and her grade point average (from 0 to 4) for her first...
IB math studies 1. Ten students were asked for their average grade at the end of their last year...
IB math studies
1. Ten students were asked for their average grade at the end of their last year of high school and their average grade at the end of their last year at university. The results were put into a table as follows: Student High School grade, University grade, y 90 3.2 2.6 75 80 3.0 70 95 3.8 85 90 3.8 2.8 70 95 85 3.0 3.5 10 Total 835 30.4 (a) Given that s, 8.96, sy-0.610 and...
10. The Academic Dean of NCC believes there may be a positive linear relationship between the number of recitations attended by a student during a semester, and the grade received in the course. The following table gives a sample of 12 students' number of recitations attended and their corresponding grades. Student Grade Number of recitations 3 7 Thomas Jose Joe Maria Susan Peter Bella Tyrone Raul Tueta 4 11 13 7 82 90 80 92 90 77 71 68 2...
The following data represents the number of days absent and the final grade for a sample of college students in a general education course at a large state university. 0 1 2 3 4 5 6 7 8 9 No. of absences Final Grade 89.2 86.4 83.5 81.1 78.2 73.9 64.3 71.8 65.5 66.2 a) Which variable is the explanatory variable? b) Draw a scatter plot and describe your scatter plot (Direction, Strength, Form). c) Compute the correlation coefficient d)...
The table below gives the number of hours ten randomly selected students spent studyling and their corresponding midterm exam grades. Using this data, consider the equation of the regression line, -bo +bix, for predicting the midterm exam grade that a student will earn based on the number of hours spent studying. Keep in mind, the correlation coefficient may or may not be statistically significant for the data given. Remember, in practice, it would not be appropriate to use the regression...
A. Find the linear correlation coefficient.
B. Find the least-squares regression line.
C.Using the model above, predict grade for 22 absences.
Note: Please, if you use any values from the tables, indicate
which table they come from. Also, please write clearly on a piece
of paper.
The data set below is on student absences and final grade. Sludem untudcat Student | Number of absences x | Final grade y (%) 82 86 43 74 58 90 78 15 12 Assume...
Note : the answer should be computerized
please
Question 2. linear Regr ession (5Marks) The following data are the monthly salaries Y and the grade point averages X for students who obtained a bachelor's degree in business administration. GPA X 2.6 3.4 3.6 3.2 3.5 2.9 Salary Y, S3300 S3600 S4000 S3500 S3900 $3600 Answer all the following questions 1) Develop a scatter diagram for these data. (1 mark) 2) Is there any relationship between GPA and Salary? (1 mark)...
Q4. Professor Video, a college psychology instructor, wants to determine if there is a negative linear correlation between a student's GPA and the number of hours a student spends playing video games per week. She randomly selected twenty students from all her classes and determined their number of hours playing video games per week and their GPA. The sample results were: GPA: 4.00 2.50 3.95 3.90 3.80 2.90 3.10 3.25 1.35 4.00 Hrs Playing:0 15 3 5 0 13 87...
A popular, nationwide standardized test taken by high-school juniors and seniors may or may not measure academic potential, but we can nonetheless exarmiune the relationship between scores on thos test and peroracen measure academie potental. but We have chosen a random sample of fifteen students just finishing their first year of college, and for each student we've recorded her score on this standardized test (from 400 to 1600) and her grade point average (from 0 to 4) for her first...
IB math studies
1. Ten students were asked for their average grade at the end of their last year of high school and their average grade at the end of their last year at university. The results were put into a table as follows: Student High School grade, University grade, y 90 3.2 2.6 75 80 3.0 70 95 3.8 85 90 3.8 2.8 70 95 85 3.0 3.5 10 Total 835 30.4 (a) Given that s, 8.96, sy-0.610 and...
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