A group of researchers wanted to investigate whether aromatherapy could improve performance on a cognitive task. They ha

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A group of researchers wanted to investigate whether aromatherapy could improve performance on a cognitive task. They ha

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A Group Of Researchers Wanted To Investigate Whether Aromatherapy Could Improve Performance On A Cognitive Task They Ha 1
A Group Of Researchers Wanted To Investigate Whether Aromatherapy Could Improve Performance On A Cognitive Task They Ha 1 (15.53 KiB) Viewed 16 times
A group of researchers wanted to investigate whether aromatherapy could improve performance on a cognitive task. They had a sample of 17 participants complete the cognitive task before and after the administration of the aromatherapy. The alpha level is .05. The Mp = 3.1 and the SSD = 120. What is the calculated test statistic, to the nearest thousandth? Make sure you put in the correct sign (+ or -).
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