Question 1 1 pts question 1- based on the sample data summarized by the following information:...
Question 12 6 pts Based on a sample of 65 observations, a least-squares regression line is obtained as follows: ŷ = 8.14 + 1.27x In addition, the result shows that the coefficient of determination is 0.717 and the standard error of regression is 19.25. Find the following statistics associated with a 95% confidence interval for the response variable (use an approximation formula if needed): 1. The critical value < [Choose ] 2. The standard error of fit [Choose] < 3....
please answer all question (2-5) thanks
Question 2 1 pts As the number of hours a student studies increases, the number of errors made on the exam decreases. There is a strong relationship between these variables. Select the value for the pearson correlation (r) that would be appropriate 0-0.7 0-0.4 o 0.6 o 1.0 Question 3 1 pts The following APA summary was reported for a one-sample t-test (two-tailed, alpha = .05). t(15) = 3.3, p = .003 Which of...
THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING: The below sample data set shows the relationship between two variables. x y 10 8.04 8 6.95 13 7.58 9 8.81 11 8.33 14 9.96 6 7.23 4 4.26 12 10.84 1. Calculate the value of SSE. The Sum of Squares Error (SSE) es defined as; SSE A. 0.010 B. 28.53 C. 10.48 D. 18.05 2.Compute the value of the coefficient of determination: A. 2.67 B. 0.63 C. 0.80 D. 3.47 3.The...
Question 1 2 pts In regression analysis, an estimated coefficient is statistically significant when: the associated p-value is close to 1. 0 the ratio of the standard error divided by the estimated coefficient is close to 0. the associated p-value is close to O the ratio of the estimated coefficient divided by the standard error is close to 0. Question 2 2 pts You are reading an academic paper where one of the estimated coefficients has a p-value of 0.0965...
q16 please. having trouble with homework
Dashboard 0.729 Question 16 1 pts The difference between the the y value predicted from the regression line and the actual y value given by the data. Critical value Correlation coefficient Regression value Residual Question 17 1 pts The table shows the number of students in thousands) participating in various programs at both two-year and four- year institutions. At a = 0.05, can it be concluded that there is a relationship between program of...
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Question 11 3 pts If the Durbin-Watson statistic is less than 1, then o negative serial correlation is likely an issue. spurious regression is likely an issue. O positive serial correlation is likely an issue. O non-stationarity is likely an issue. Question 12 3 pts Consider the estimated multiple regression model using OLS, with the standard errors in parentheses below each estimated coefficient. There are 1,576 observations in the sample: Y; = 10...
Question 3 30 pts Given the following predictive results: Sample ID (id) Predicted Probability (prob) Sample Label (label) 1 0.9 1 0.8 0 N 3 0.3 1 4 0.6 o 5 0.4 o 6 0.7 1 7 0.1 0 8 0.2 1 (10 Pts.). Suppose 0.6 is a cutoff, then the sample is predicted to be 1 if its probability >=0.6, and o otherwise. Please compute tpr and fpr. . (20 Pts.). Please compute its AUC manually. You need to...
Question 1 1 pts The equation of the regression line between two variables x (independent variable) and y (dependent variable) is given by ý = -3x -- 2; and the correlation coefficient iss =-.95. The possible x- values range from 1 to 10. Based on the given r, which of the following conclusions may be made? X and Y are very weakly correlated. and y are moderately correlated, and y tends to increase as x is increased. X and y...
This Question: 1 pt 10 of 15 (12 complete) A Data Table One of the biggest factors in determining the value of a home dollars) for a random sample of homes for sale. Complete part Es: Click the icon to view the data table. = Click the icon to view a table of critical values for the corre (a) Which variable is the explanatory variable? O A. Determining the value of a home OB Number of homes OC. Asking price...
Question 3 1 pts Calculate Sample Variance for the following data collection: 10, 11, 12, 13, 14, 18. O 8.0 O 6.8 4.6 O 2.4 8:54 PM 21 eopleSc xCourseH HW-03 Week 3: S X eycollege.instructure.com ! ☆山 0/1 pts Question4 Calculate Sample Standard Deviation for the following data collection: 4, 6, 10, 14, 16. 4.28 O 3.46 5.10 7.24