On the first statistics exam, the coefficient of determination between the hours studied and the grade earned was 90%. The standard error of estimate was 14. There were 18 students in the class. Develop an ANOVA table for the regression analysis of hours studied as a predictor of the grade earned on the first statistics exam. (Round your decimal answers to 2 places.)
On the first statistics exam, the coefficient of determination between the hours studied and the grade...
On the first statistics exam, the coefficient of determination between the hours studied and the grade earned was 88%. The standard error of estimate was 16, There were 26 students in the class. Develop an ANOVA table for the regression analysis of hours studied as a predictor of the grade earned on the first statistics exam. (Round your decimal answers to 2 places.) MS Source Regression Error Total DF
On the first statistics exam, the coefficient of determination between the hours studied and the grade eamed was 60%. The standard error of estimate was 19. There were 22 students in the class. Develop an ANOVA table for the regression analysis of hours studied as a predictor of the grade earned on the first statistics exam. (Round your decimal answers to 2 places.) DF SS MS Source Regression Error Total
On the first statistics exam, the coefficient of determination between the hours studied and the grade earned was 82%. The standard error of estimate was 13. There were 28 students in the class. Develop an ANOVA table for the regression analysis of hours studied as a predictor of the grade earned on the first statistics exam. (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 2 decimal places.) Source DF SS MS Regression...
Check my work On the first statistics exam, the coefficient of determination between the hours studied and the grade e standard error of estimate was 15. There were 18 students in the class. Develop an ANOVA table. (Round the final answers to the nearest whole number.) points df MS Source Regression Residual Total eBook Print
In an anonymous survey 34 students reported the hours they studied for a statistics final exam. The histogram below shows the results of the survey. In an anonymous survey 34 students reported the hours they studied for a statistics final exam. The histogram below shows the results of the survey. Time spent studying 8 4 0-2 2-4 4-6 6-8 8-10 10-12 12-14 14-16 16-18 18-20 20-22 Hours Which statement below is the most accurate description of the center of the...
The data below are the scores of 10 randomly selected students from a statistics class and the number of hours they studied for the exam. Construct a interval for y, the score on the final exam, given x -7 hours,5.04x+6.11 and s -6.35 허허허허허워 허허허허 Scones, y O55.43 <y< 78.19 O 79.16 <y< 112.34 074.54 < y < 10830 77.21c y < 110.45 The data below are the scores of 10 randomly selected students from a statistics class and the...
7. The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they studied for the exam. Find the standard error of estimate, se, given that Hours (X) 3 5 2 8 2 4 4 5 6 3 Scores (Y) 65 80 60 88 66 78 85 90 90 71 A. 6.305 B. 9.875 C. 8.912 D. 7.913
The final exam grade of a statistics class has a skewed distribution with mean of 76 and standard deviation of 7.4. If a random sample of 36 students selected from this class, then what is the probability that the average final exam grade of this sample is between 75 and 80? Answer: (keep 4 decimal places)
5- Interpret the coefficient of determination (R-squared) and the F test. SUMMARY OUTPUT Regression Statistics Multiple R 0.8811 R Square 0.7764 Adjusted R Square 0.7205 Standard Error 14.7724 Observations 16 ANOVA df SS MS F Regression 3 9091.7392 3030.5797 13.8874 Residual 12 2618.7008 218.2251 Total 15 11710.44 Coefficients Standard Error t Stat P-value Intercept 29.1385 174.7427 0.1668 0.8703 PFH -2.1236 0.3405 -6.2361 0.0000 PR 1.0345 0.4667 2.2164 0.0467 M 3.0871 0.9993 3.0892 0.0094
A class has 136 students. The time it takes to grade one exam paper is on average 3 minutes and has standard deviation 90 seconds. Estimate the probability that it will take less than 7 hours for one person to grade all of the exams.