For number 1-6: A cost-of-living index measures the relative cost of living over time or regions. The following data pairs represent the cost of living index for grocery items (A) and health care (B) of the grouped urban areas. Groceries 99 97 110 97,3 114 99 106 96.8 98 Health BN 94 91 109 120 127 98 115 105.9 96 8=12.55 S=G.44 1. What is the mean cost of living Index for health items? B. 72.68 C. 106.21 A. 99.82 D. 101.34 2. Is the mean cost of living index for grocery higher than the mean cost of living index for health? A. Yes B. No. C. Cannot be determined. 3. What is the absolute computed t-value? A. 2.88 B. 1.16 C. 1.34 D. 1.89 4. Given the tabulated t-2.306 at 5% level of significance, is the difference significant? A. Yes. B. No 5. What is the decision to the problem? B. Reject Ho A. Accept Ho 6. What is the conclusion to the problem? A. There is no significant difference in the mean cost of living indices for grocery and health.. B. There is a significant difference in the mean cost of living indices for grocery and health. For number 7-11: The following data represent the number of cases of dog rabies for a random sample of twenty municipalities in two different regions. Is there a significant difference in dog rables cases in the two regions at 5% level of significance? REGION A REGION B 2 4 2 3 0 3 2 5 6 2 S=173 1 3 4 2 1 0 3 2 4 5 S= 1.58 7. What is the appropriate t-test to be used in the problem? A. t-test for independent sample B. t-test for dependent sample C. t-test for correlated sample D. t-test for paired sample 8. What is the absolute computed t-test value? A. 1.49 B. 1.88. C. 0.54 D. 2.82 9. If the tabulated t = 2.101, what is the decision? A. Accept Ho B. Reject Ho 10. Is the result (difference) not significant? A. Yes B. No 11. What is the conclusion to the problem? A. There is no significant difference in the cases of dog rabies in two regions. B. There is a significant difference in the cases of dog rabies in two regions. For number 12-15: A doctor is interested in determining whether a film about exercise will change 10 persons' attitudes toward exercise. A survey was administered to determine the responses (on attitudes toward exercise) before and after the program. Is there enough evidence to support the claim, at a 0.05, that there was a change in attitude? Paired Differences Std. Error Std. Mean Deviation Mean Pair 1 Before-After 3.000 1.39941 0.44222 6.593 df 9 Sig. (2. tailed) 0.000 12. Which mean score is lower? A. Mean response before the program B. Mean response after the program C. Cannot be determined. 13. Given the values, is the result not significant? A. Yes B. No 14. What is the decision to be made? A. Accept Ho B. Reject Ho 15. What is the conclusion to the problem? A. There was no enough evidence to support the claim; hence, there was a change in attitude toward exercise. B. There was enough evidence to support the claim; hence, there was a change in attitude toward exercise. C. There was enough evidence to support the claim; hence, there was no change in attitude toward exercise. D. There was no enough evidence to support the claim; hence, there was no change in attitude toward exercise.
For number 1-6: A cost-of-living index measures the relative cost of living over time or regions. The following data pairs represent the cost of living index for grocery items (A) and health care (B) of the grouped urban areas. Groceries 99 97 110 97,3 114 99 106 96.8 98 Health BN 94 91 109 120 127 98 115 105.9 96 8=12.55 S=G.44 1. What is the mean cost of living Index for health items? B. 72.68 C. 106.21 A. 99.82 D. 101.34 2. Is the mean cost of living index for grocery higher than the mean cost of living index for health? A. Yes B. No. C. Cannot be determined. 3. What is the absolute computed t-value? A. 2.88 B. 1.16 C. 1.34 D. 1.89 4. Given the tabulated t-2.306 at 5% level of significance, is the difference significant? A. Yes. B. No 5. What is the decision to the problem? B. Reject Ho A. Accept Ho 6. What is the conclusion to the problem? A. There is no significant difference in the mean cost of living indices for grocery and health.. B. There is a significant difference in the mean cost of living indices for grocery and health. For number 7-11: The following data represent the number of cases of dog rabies for a random sample of twenty municipalities in two different regions. Is there a significant difference in dog rables cases in the two regions at 5% level of significance? REGION A REGION B 2 4 2 3 0 3 2 5 6 2 S=173 1 3 4 2 1 0 3 2 4 5 S= 1.58 7. What is the appropriate t-test to be used in the problem? A. t-test for independent sample B. t-test for dependent sample C. t-test for correlated sample D. t-test for paired sample 8. What is the absolute computed t-test value? A. 1.49 B. 1.88. C. 0.54 D. 2.82 9. If the tabulated t = 2.101, what is the decision? A. Accept Ho B. Reject Ho 10. Is the result (difference) not significant? A. Yes B. No 11. What is the conclusion to the problem? A. There is no significant difference in the cases of dog rabies in two regions. B. There is a significant difference in the cases of dog rabies in two regions. For number 12-15: A doctor is interested in determining whether a film about exercise will change 10 persons' attitudes toward exercise. A survey was administered to determine the responses (on attitudes toward exercise) before and after the program. Is there enough evidence to support the claim, at a 0.05, that there was a change in attitude? Paired Differences Std. Error Std. Mean Deviation Mean Pair 1 Before-After 3.000 1.39941 0.44222 6.593 df 9 Sig. (2. tailed) 0.000 12. Which mean score is lower? A. Mean response before the program B. Mean response after the program C. Cannot be determined. 13. Given the values, is the result not significant? A. Yes B. No 14. What is the decision to be made? A. Accept Ho B. Reject Ho 15. What is the conclusion to the problem? A. There was no enough evidence to support the claim; hence, there was a change in attitude toward exercise. B. There was enough evidence to support the claim; hence, there was a change in attitude toward exercise. C. There was enough evidence to support the claim; hence, there was no change in attitude toward exercise. D. There was no enough evidence to support the claim; hence, there was no change in attitude toward exercise.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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