Is memory ability before a meal worse 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...

Extracted text: Is memory ability before a meal worse 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 46 63 75 77 68 75 50 72 71 61 After 49 62 66 84 68 80 64 76 73 68 а Мeal Assume a Normal distribution. What can be concluded at the the a = 0.05 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be: Ho: Select an answer v Select an answer ♥ Select an answer (please enter a decimal) H: Select an answer v Select an answer v Select an answer v (Please enter a decimal) b. The test statistic ? v (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.) d. The p-value is ? va e. Based on this, we should Select an answer v the null hypothesis. f. Thus, the final conclusion is that ... O The results are statistically insignificant at a = evidence to conclude that the population mean memory score before a meal is equal to the population mean memory score after a meal. 0.05, so there is statistically significant The results are statistically significant at a = 0.05, so there is sufficient evidence to conclude that the ten memory scores from the memory tests that were taken before a meal are lower on average than the ten memory scores from the memory tests that were taken after a meal. %3D O The results are statistically significant at a = 0.05, so there is sufficient evidence to conclude that the population mean memory score before a meal is lower than the population mean memory score after a meal %3D O The results are statistically insignificant at a = 0.05, so there is insufficient evidence to conclude that the population mean memory score before a meal is lower than the population mean memory score after a meal. g. Interpret the p-value in the context of the study. O If the population mean memory score before a meal is the same as the population mean


Extracted text: g. Interpret the p-value 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 6.39% chance that the mean memory score for the 10 people who took the test before a meal would be at least 3.2 points lower than the mean memory score for the 10 people who took the test after a meal. 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 6.39% chance of concluding that the mean memory score for the 10 people who took the test before a meal is at least 3.2 points lower than the mean memory score for the 10 people who took the test after a meal. There is a 6.39% chance of a Type I error. O There is a 6.39% chance that the mean memory score for the 10 people who took the test before a meal is at least 3.2 points lower 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 5% 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 5% chance that the population mean memory score is the same before and 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 5% chance that we would end up falsely concuding that the population mean memory score before a meal is lower than the population mean memory score after a meal There is a 5% chance that your memory is so bad that you have already forgotten what this chapter is about.