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Is memory ability before a meal better than after a meal? Ten people were given memory tests before their meal and then again after their meal. The data is shown below. A higher score indicates a better memory ability. Ho: Select an answer H₁: Select an answer Before a Meal b. The test statistic c. The p-value= Score on the Memory Test 79 48 73 66 59 74 52 66 71 62 Assume a Normal distribution. What can be concluded at the the x = 0.01 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: After a Meal 72 41 71 62 61 79 42 58 70 56 Select an answer Select an answer Select an answer Select an answer (please enter a decimal) (Please enter a decimal) (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.)

Is memory ability before a meal better than after a meal? Ten people were given memory tests before their meal and then again after their meal. The data is shown below. A higher score indicates a better memory ability. Ho: Select an answer H₁: Select an answer Before a Meal b. The test statistic c. The p-value= Score on the Memory Test 79 48 73 66 59 74 52 66 71 62 Assume a Normal distribution. What can be concluded at the the x = 0.01 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: After a Meal 72 41 71 62 61 79 42 58 70 56 Select an answer Select an answer Select an answer Select an answer (please enter a decimal) (Please enter a decimal) (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Is memory ability before a meal better than after a meal? Ten people were given memory tests before their meal and then again after their meal. The data is shown below. A higher score indicates a better memory ability. Score on the Memory Test Before a Meal 79 48 73 66 59 74 52 66 71 62 72 41 71 62 61 79 42 58 70 56 Ho: Select an answer ✔ H₁: Select an answer After a Meal Assume a Normal distribution. What can be concluded at the the = 0.01 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Select an answer Select an answer Select an answer Select an answer = (please enter a decimal) (Please enter a decimal) b. The test statistic c. The p-value = d. The p-value is? Va e. Based on this, we should [Select an answer the null hypothesis. f. Thus, the final conclusion is that ... (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) O The results are statistically insignificant at x = 0.01, so there is insufficient evidence to conclude that the population mean memory score before a meal is higher than the population mean memory score after a meal.. O The results are statistically significant at x = 0.01, so there is sufficient evidence to conclude that the ten memory scores from the memory tests that were taken before a meal are higher on average than the ten memory scores from the memory tests that were taken after a meal. O The results are statistically significant at x = 0.01, so there is sufficient evidence to conclude population mean memory score before a meal is higher than the population mean memory score after a meal that O The results are statistically insignificant at x = 0.01, so there is statistically significant evidence to conclude that the population mean memory score before a meal is equal to the population mean memory score after a meal. g. Interpret the p-value in the context of the study. O There is a 1.62% chance that the mean memory score for the 10 people who took the test before a meal is at least 3.8 points higher than the mean memory score for the 10 people who took the test after a meal. There is a 1.62% chance of a Type I error. O If the sample mean memory score for the 10 people who took the test before a meal is the same as the sample mean memory score for the 10 people who took the test after a meal and if another 10 people are given a memory test before and after a meal then there would be a 1.62% chance of concluding that the mean memory score for the 10 people who took the test before a meal is at least 3.8 points higher than the mean memory score for the 10 people who took the test after a meal. O If the population mean memory score before a meal is the same as the population mean memory score after a meal and if another 10 people are given a memory test before and after a meal then there would be a 1.62% chance that the mean memory score for the 10 people who took the test before a meal would be at least 3.8 points higher than the mean memory score for the 10 people who took the test after a meal. h. Interpret the level of significance in the context of the study. O If the population mean memory score before a meal is the same as the population mean memory score after a meal and if another 10 people are given a memory test before and after a meal, then there would be a 1% chance that we would end up falsely concuding that the population mean memory score before a meal is higher than the population mean memory score after a meal O If the population mean memory score before a meal is the same as the population mean memory score after a meal and if another 10 people are given a memory test before and after a meal, then there would be a 1% chance that we would end up falsely concuding that the sample mean memory scores before and after a meal for these 10 people who were part of the study differ from each other. O There is a 1% chance that your memory is so bad that you have already forgotten what this chapter is about. There is a 1% chance that the population mean memory score is the same before and after a meal.
Transcribed Image Text:Is memory ability before a meal better than after a meal? Ten people were given memory tests before their meal and then again after their meal. The data is shown below. A higher score indicates a better memory ability. Score on the Memory Test Before a Meal 79 48 73 66 59 74 52 66 71 62 72 41 71 62 61 79 42 58 70 56 Ho: Select an answer ✔ H₁: Select an answer After a Meal Assume a Normal distribution. What can be concluded at the the = 0.01 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Select an answer Select an answer Select an answer Select an answer = (please enter a decimal) (Please enter a decimal) b. The test statistic c. The p-value = d. The p-value is? Va e. Based on this, we should [Select an answer the null hypothesis. f. Thus, the final conclusion is that ... (please show your answer to 3 decimal places.) (Please show your answer to 4 decimal places.) O The results are statistically insignificant at x = 0.01, so there is insufficient evidence to conclude that the population mean memory score before a meal is higher than the population mean memory score after a meal.. O The results are statistically significant at x = 0.01, so there is sufficient evidence to conclude that the ten memory scores from the memory tests that were taken before a meal are higher on average than the ten memory scores from the memory tests that were taken after a meal. O The results are statistically significant at x = 0.01, so there is sufficient evidence to conclude population mean memory score before a meal is higher than the population mean memory score after a meal that O The results are statistically insignificant at x = 0.01, so there is statistically significant evidence to conclude that the population mean memory score before a meal is equal to the population mean memory score after a meal. g. Interpret the p-value in the context of the study. O There is a 1.62% chance that the mean memory score for the 10 people who took the test before a meal is at least 3.8 points higher than the mean memory score for the 10 people who took the test after a meal. There is a 1.62% chance of a Type I error. O If the sample mean memory score for the 10 people who took the test before a meal is the same as the sample mean memory score for the 10 people who took the test after a meal and if another 10 people are given a memory test before and after a meal then there would be a 1.62% chance of concluding that the mean memory score for the 10 people who took the test before a meal is at least 3.8 points higher than the mean memory score for the 10 people who took the test after a meal. O If the population mean memory score before a meal is the same as the population mean memory score after a meal and if another 10 people are given a memory test before and after a meal then there would be a 1.62% chance that the mean memory score for the 10 people who took the test before a meal would be at least 3.8 points higher than the mean memory score for the 10 people who took the test after a meal. h. Interpret the level of significance in the context of the study. O If the population mean memory score before a meal is the same as the population mean memory score after a meal and if another 10 people are given a memory test before and after a meal, then there would be a 1% chance that we would end up falsely concuding that the population mean memory score before a meal is higher than the population mean memory score after a meal O If the population mean memory score before a meal is the same as the population mean memory score after a meal and if another 10 people are given a memory test before and after a meal, then there would be a 1% chance that we would end up falsely concuding that the sample mean memory scores before and after a meal for these 10 people who were part of the study differ from each other. O There is a 1% chance that your memory is so bad that you have already forgotten what this chapter is about. There is a 1% chance that the population mean memory score is the same before and after a meal.
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