Instructions: Read the scenario and answer the following questions. Data are gat
ID: 3173217 • Letter: I
Question
Instructions: Read the scenario and answer the following questions. Data are gathered on 16 students. Half of the students are randomly assigned to a new tutoring program and half have their usual school experience. A study finds that test scores for the tutoring program students are on average 10 points higher than those for the other students. The p-value for a test of improvement from the program is .3, not significant at even the 10% level.
5. If mean test scores are 200 and the standard deviation is 40, are these results practically significant, in your opinion? Explain what practical significance means. 6. Explain what causes this result to be not statistically significant. 7. Do you conclude that the tutoring program is ineffective because the results are not statistically significant? 8. What recommendation would you make for adopting the new tutoring program?
Instructions: Read the scenario and answer the following questions. Data are gathered on 16 students. Half of the students are randomly assigned to a new tutoring program and half have their usual school experience. A study finds that test scores for the tutoring program students are on average 10 points higher than those for the other students. The p-value for a test of improvement from the program is .3, not significant at even the 10% level.
5. If mean test scores are 200 and the standard deviation is 40, are these results practically significant, in your opinion? Explain what practical significance means. 6. Explain what causes this result to be not statistically significant. 7. Do you conclude that the tutoring program is ineffective because the results are not statistically significant? 8. What recommendation would you make for adopting the new tutoring program?
Instructions: Read the scenario and answer the following questions. Data are gathered on 16 students. Half of the students are randomly assigned to a new tutoring program and half have their usual school experience. A study finds that test scores for the tutoring program students are on average 10 points higher than those for the other students. The p-value for a test of improvement from the program is .3, not significant at even the 10% level.
5. If mean test scores are 200 and the standard deviation is 40, are these results practically significant, in your opinion? Explain what practical significance means. 6. Explain what causes this result to be not statistically significant. 7. Do you conclude that the tutoring program is ineffective because the results are not statistically significant? 8. What recommendation would you make for adopting the new tutoring program?
Explanation / Answer
5) The results are not practically significant.
Explantion: Here the standard deviation is 40, means that there is a huge variation in the scores between each and every individual and automatically the standard error is also increases. Therefore there is no uniform increase in the test scores. So the it is not significant
6)
1) less sample size
2) more standard deviation
3) high standard error also effects
7) YES.
8) For getting good result, we should increase the sample size. It is the most imoprtant and it should be calculated by using scientific method.Then only we will get the significant results