To investigate the effect of alcohol on fine motor movements, subjects were asked to thread as many needles aspossible during a ten minute period after having consumed (1) 100 ml of colorless, odourless and tasteless 80-proofgrain alcohol (alcohol) and (2) 100 ml of distilled water (water), a week apart and counterbalanced.Two t-tests were run (lower part of each table is missing).Alcohol WaterAlcohol WaterMean4.35.4Mean4.3Variance1.791.6Variance1.79Observations1010Observations10Pearson0.45Pooled Variance1.69CorrelationHypothesizedHypothesized0Mean DifferenceMean Differencedf9df18t Stat-2.47t Stat-1.89Which of the statements below is correcta. Two sample t-test showed no significant effect of alcohol (t = -2.47, df = 9, p > 0.05)b. Two sample t-test showed a significant effect of alcohol (t = -1.89, df = 18, p < 0.05)c. Paired t-test showed a significant effect of alcohol (t = -2.47, df = 9, p <0.05)d. Paired t-test showed no significant effect of alcohol (t = -1.89, df = 18, p >0.05)5.41.610

The claim in this context to test the effect of alcohol on fine motor movements before and after…

Answered: Which of the statements below is…

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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Brink studied the effect of postural change on cardiovascular reactivity for a sample of healthy white and African American men and women. Change in systolic blood pressure (SBP) from supine to standing position was used as the measure of cardiac reactivity in a sample of 842 adults. Supine measurement of blood pressure was taken after participants had lain on an examination table for 15 minutes. Blood pressure was measured five times every 2 minutes using a preset automated blood pressure monitor, and the five measurements were averaged. Participants then stood up, and an additional five measurements were made over another 10-minute period and then averaged. Below is a table describing the characteristics of Brink’s sample. Characteristics of the Study Sample (N = 842) Sample Characteristic Frequency (N) Percentage or Mean (SD) Range Gender Female Male 408 434 48.5% 51.5% Age (years) 842 55.1 (5.3) 44–67 Race/ethnicity White, not Hispanic…
Researchers at a medical school want to compare the rates of birth defects in babies born to mothers with low-fat diets with those born to mothers with high-fat diets. For one year, they collected data on all babies and their mothers in area hospitals, using information obtained from the mothers to determine whether they fall in the low fat or high fat diet category.A) Observational B) Experimental
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