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Does 30 minutes of meditation every day provide significant improvement in mental performance? To investigate this issue, a researcher conducted a study with 150 adult subjects, who meditated for 30 minutes each day for a period of six months. At the end of the study, 300 variables related to mental performance were measured on each subject. The resulting means were compared to known means for these variables in the population of all adults. Sixteen of these variables were significantly better, in the sense of statistical significance, at the a = 0.05 level for the meditation group as compared to the population as a whole, and three variables were significantly better at the a = 0.01 level for the meditation group as compared to the population as a whole. It would be correct to conclude that: there is very good statistical evidence that 30 minutes of meditation each day provides improvement for the variable that was significant at the a = 0.01 level. We should be somewhat cautious about making claims for the variables that were significant at the a = 0.05 level. these results would have provided very good statistical evidence that 30 minutes of meditation each day provides some nerformanss. if the number of subjects had been larger. It is premature to draw statistical inhlar measured

Does 30 minutes of meditation every day provide significant improvement in mental performance? To investigate this issue, a researcher conducted a study with 150 adult subjects, who meditated for 30 minutes each day for a period of six months. At the end of the study, 300 variables related to mental performance were measured on each subject. The resulting means were compared to known means for these variables in the population of all adults. Sixteen of these variables were significantly better, in the sense of statistical significance, at the a = 0.05 level for the meditation group as compared to the population as a whole, and three variables were significantly better at the a = 0.01 level for the meditation group as compared to the population as a whole. It would be correct to conclude that: there is very good statistical evidence that 30 minutes of meditation each day provides improvement for the variable that was significant at the a = 0.01 level. We should be somewhat cautious about making claims for the variables that were significant at the a = 0.05 level. these results would have provided very good statistical evidence that 30 minutes of meditation each day provides some nerformanss. if the number of subjects had been larger. It is premature to draw statistical inhlar measured

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
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Does 30 minutes of meditation every day provide significant improvement in mental performance? To investigate this issue, a researcher conducted a study with 150 adult subjects, who meditated for 30 minutes each day for a period of six months. At the end of the study, 300 variables related to mental performance were measured on each subject. The resulting means were compared to known means for these variables in the population of all adults. Sixteen of these variables were significantly better, in the sense of statistical significance, at the a = 0.05 level for the meditation group as compared to the population as a whole, and three variables were significantly better at the a = 0.01 level for the meditation group as compared to the population as a whole. It would be correct to conclude that: O there is very good statistical evidence that 30 minutes of meditation each day provides improvement for the variable that was significant at the a = 0.01 level. We should be somewhat cautious about making claims for the variables that were significant at the a = 0.05 level. these results would have provided very good statistical evidence that 30 minutes of meditation each day provides some improvement in mental performance, if the number of subjects had been larger. It is premature to draw statistical conclusions from studies in which the number of subjects is less than the number of variables measured. there is very good statistical evidence that 30 minutes of meditation each day provides some improvement in mental performance. O None of the answer options are correct. hp delete prt sc 12 insért 可一
Transcribed Image Text:Does 30 minutes of meditation every day provide significant improvement in mental performance? To investigate this issue, a researcher conducted a study with 150 adult subjects, who meditated for 30 minutes each day for a period of six months. At the end of the study, 300 variables related to mental performance were measured on each subject. The resulting means were compared to known means for these variables in the population of all adults. Sixteen of these variables were significantly better, in the sense of statistical significance, at the a = 0.05 level for the meditation group as compared to the population as a whole, and three variables were significantly better at the a = 0.01 level for the meditation group as compared to the population as a whole. It would be correct to conclude that: O there is very good statistical evidence that 30 minutes of meditation each day provides improvement for the variable that was significant at the a = 0.01 level. We should be somewhat cautious about making claims for the variables that were significant at the a = 0.05 level. these results would have provided very good statistical evidence that 30 minutes of meditation each day provides some improvement in mental performance, if the number of subjects had been larger. It is premature to draw statistical conclusions from studies in which the number of subjects is less than the number of variables measured. there is very good statistical evidence that 30 minutes of meditation each day provides some improvement in mental performance. O None of the answer options are correct. hp delete prt sc 12 insért 可一
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