Homework Answers
Question 4.
The regression equation can be written as -
ŷ = slope*x + intercept
Where ŷ is the predicted y.
Here, the slope is 0.00401 and the intercept is 0.88929. So, the equation will be -
ŷ = 0.00401x + 0.88929
Option D is the right answer.
Question 3.
Yes, the correlation is significant here.
Option A is the right answer.
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Question 3 1 pts Is the correlation significant? Yes, quantitative GRE score can be used to...
Question 6 3 pts For each of the quantitative GRE scores, use the regression equation to...
Question 6 3 pts For each of the quantitative GRE scores, use the regression equation to predict the student's first year GPA. Type either a numerical value or not appropriate. Round final answer to two decimal places. 400: 1 500: 600: Information for questions 1-6: A graduate program wants to determine if first year graduate student GPA, y, is linearly related to score on the quantitative section of the GRE, X, (Graduate Record Examinations). Data was collected from 15 randomly...
Question 1 1 pts The correlation between score and first year GPA is 0.529. What is...
Question 1 1 pts The correlation between score and first year GPA is 0.529. What is the critical value for the testing if the correlation is significant at a =.05? Question 2 1 pts To determine if the correlation is significant, what rule is used? correlation is significant if r<.05 correlation is significant if |r| < critical value O correlation is significant if r>.05 correlation is significant if |r| > critical value Information for questions 1-6: A graduate program wants...
A graduate program wants to determine if first year graduate student GPA,y, Is linearly related to...
A
graduate program wants to determine if first year graduate student
GPA,y, Is linearly related to score on the quantitative section of
the GRE,x, (Graduate Recored Examinations).
Data was collected from 15 randomly selected graduate
students. Scores on the quantitative secrion of the GRE ranged from
480 to 720.
1. To determine if the correlation is significant, what rule
is used?
a. correlation is significant if |r| > critical
value.
b. correlation is significant if |r| < critical value
c....
Directions: Please download the files, HW_6_Data.xlsx, from Blackboard. This question requires you to use Excel to...
Directions: Please download the files, HW_6_Data.xlsx, from Blackboard. This question requires you to use Excel to run multiple linear regression models. In order to receive full credit, you must turn in Excel output with your answers. A researcher was interested in how students' Graduate Record Examinations scores (GREQ- Quantitative and GREV-Verbal) predict college students' graduate school Grade Point Average (GGPA). He collects data from 30 college students. The GRE Quantitative (X1) and GRE Verbal (X2) scores can range from 400-1600...
Question 19 2 pts The equation used to predict how long it will take to receive...
Question 19 2 pts The equation used to predict how long it will take to receive a package through the mail is ý=0.5 + 0.02x4 + 0.85x2 days, where xq is the distance to travel and X2 is the weight of the package. Use this equation to predict the how long it will take to receive a package that is 145 miles away and weighs 3.8 pounds. Homework Help: ZDF. Using a multiple regression equation to estimate values from independent...
Erika Diaz Your name Assignment 10 Correlation, Scatterplot, and Prediction (due 7/30/20 - 1/4/20)(28 pts) 1....
Erika Diaz Your name Assignment 10 Correlation, Scatterplot, and Prediction (due 7/30/20 - 1/4/20)(28 pts) 1. A teacher hypothesizes that the more days of school student misses, the worse the student will do on a final exam (possible scores on the exam range from 0 to 20). She obtained a random sample of 12 students. The data are shown below. Student days missed Final exam score 1 3 16 2 2 17 3 5 13 4 8 7 5 4...
Questions 6, 7, 10, 11 and 12. Question 6 1 pts Select the appropriate equation for...
Questions 6, 7, 10, 11 and 12.
Question 6 1 pts Select the appropriate equation for the line of prediction from the SPSS output. Coefficients Standardized Coefficients Beta Sig. Unstandardized Coefficients Model B Std. Error 1 (Constant) 3.977 1.193 Variable 1 414 096 Variable 2 -2019 2011 a. Dependent Variable: Outcome (Y) 458 -181 t 3.333 4.313 -1.704 .001 000 ,093 O Yhat = 3.977 +4.313X1 - 1703X2 Yhat - 3.977 +0.458X, -0.181X2 Yhat = 3.333+4.313X1 - 1703X, Yhat =...
Question 1 3 pts Consider the histogram below from a class of 321 students: Histogram of...
Question 1 3 pts Consider the histogram below from a class of 321 students: Histogram of Total Course Points 140 120 100 80 Number of Students 60 40 20 0 Below 500 500 to 599 600 to 699 700 to 799 800 to 899 900 and above Total Course Points (1000 possible) Which of the following is a correct statement based on the histogram above? The arithmetic mean score is greater than the median score. o No answer text provided....
1. Identify the formula for predicting an individual's z score on the dependent variable from their z score on the independent variable. a.) (rxy)(zy) b.) (rxy)(zx) c.) zx/zy d.) (zx)(zy) 2. Data...
1. Identify the formula for predicting an individual's z score on the dependent variable from their z score on the independent variable. a.) (rxy)(zy) b.) (rxy)(zx) c.) zx/zy d.) (zx)(zy) 2. Data from the 1993 World Almanac and Book of Facts were used to predict the life expectancy for men in a country from the life expectancy of women in that country. The resulting regression equation was Yˆ = 9.32 + 0.79(X). Using the regression equation, what would you predict...
please answer all question 16-20 Question 16 2 pts The population mean for a standardized test...
please answer all question 16-20
Question 16 2 pts The population mean for a standardized test is 250. A research study with N = 30 adults from Virginia had a mean score of 260, with a 95% confidence interval of the mean reported as [248, 272]. What decision should be made based on this confidence interval? o Run the hypothesis test again o Accept the research hypothesis o Reject the null hypothesis o Fail to reject the null hypothesis Question...
Question 6 3 pts For each of the quantitative GRE scores, use the regression equation to predict the student's first year GPA. Type either a numerical value or not appropriate. Round final answer to two decimal places. 400: 1 500: 600: Information for questions 1-6: A graduate program wants to determine if first year graduate student GPA, y, is linearly related to score on the quantitative section of the GRE, X, (Graduate Record Examinations). Data was collected from 15 randomly...
Question 1 1 pts The correlation between score and first year GPA is 0.529. What is the critical value for the testing if the correlation is significant at a =.05? Question 2 1 pts To determine if the correlation is significant, what rule is used? correlation is significant if r<.05 correlation is significant if |r| < critical value O correlation is significant if r>.05 correlation is significant if |r| > critical value Information for questions 1-6: A graduate program wants...
A
graduate program wants to determine if first year graduate student
GPA,y, Is linearly related to score on the quantitative section of
the GRE,x, (Graduate Recored Examinations).
Data was collected from 15 randomly selected graduate
students. Scores on the quantitative secrion of the GRE ranged from
480 to 720.
1. To determine if the correlation is significant, what rule
is used?
a. correlation is significant if |r| > critical
value.
b. correlation is significant if |r| < critical value
c....
Directions: Please download the files, HW_6_Data.xlsx, from Blackboard. This question requires you to use Excel to run multiple linear regression models. In order to receive full credit, you must turn in Excel output with your answers. A researcher was interested in how students' Graduate Record Examinations scores (GREQ- Quantitative and GREV-Verbal) predict college students' graduate school Grade Point Average (GGPA). He collects data from 30 college students. The GRE Quantitative (X1) and GRE Verbal (X2) scores can range from 400-1600...
Question 19 2 pts The equation used to predict how long it will take to receive a package through the mail is ý=0.5 + 0.02x4 + 0.85x2 days, where xq is the distance to travel and X2 is the weight of the package. Use this equation to predict the how long it will take to receive a package that is 145 miles away and weighs 3.8 pounds. Homework Help: ZDF. Using a multiple regression equation to estimate values from independent...
Erika Diaz Your name Assignment 10 Correlation, Scatterplot, and Prediction (due 7/30/20 - 1/4/20)(28 pts) 1. A teacher hypothesizes that the more days of school student misses, the worse the student will do on a final exam (possible scores on the exam range from 0 to 20). She obtained a random sample of 12 students. The data are shown below. Student days missed Final exam score 1 3 16 2 2 17 3 5 13 4 8 7 5 4...
Questions 6, 7, 10, 11 and 12.
Question 6 1 pts Select the appropriate equation for the line of prediction from the SPSS output. Coefficients Standardized Coefficients Beta Sig. Unstandardized Coefficients Model B Std. Error 1 (Constant) 3.977 1.193 Variable 1 414 096 Variable 2 -2019 2011 a. Dependent Variable: Outcome (Y) 458 -181 t 3.333 4.313 -1.704 .001 000 ,093 O Yhat = 3.977 +4.313X1 - 1703X2 Yhat - 3.977 +0.458X, -0.181X2 Yhat = 3.333+4.313X1 - 1703X, Yhat =...
Question 1 3 pts Consider the histogram below from a class of 321 students: Histogram of Total Course Points 140 120 100 80 Number of Students 60 40 20 0 Below 500 500 to 599 600 to 699 700 to 799 800 to 899 900 and above Total Course Points (1000 possible) Which of the following is a correct statement based on the histogram above? The arithmetic mean score is greater than the median score. o No answer text provided....
please answer all question 16-20
Question 16 2 pts The population mean for a standardized test is 250. A research study with N = 30 adults from Virginia had a mean score of 260, with a 95% confidence interval of the mean reported as [248, 272]. What decision should be made based on this confidence interval? o Run the hypothesis test again o Accept the research hypothesis o Reject the null hypothesis o Fail to reject the null hypothesis Question...
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