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A researcher for a cereal company wanted to demonstrate the health benefits of eating oatmeal. A sample of 9 volunteers was obtained and each participant ate a fixed diet without any oatmeal for 30 days. At the end for the 30 day period, cholesterol was measured for each individual. Then the participants began a second diet except that they added 2 cups of oatmeal each day. After the second 30 day period, cholesterol levels were measured again and the researcher recorded the difference between the tow scores for each participants. For this sample, cholesterol scores averaged M0 =16 points longer with the oatmeal diet with SS = 538 for the different scores. a. Are the data sufficient to indicate a significant change in cholesterol level? Use the two tailed test with a = .01. b. Compute r2 the percentage of variance accounted for by the treatment, to measure the size of the treatment effect. c. Write a sentence describing the outcome of the hypothesis test and the measure of effect size as it would appear in a research report.
Locate at least 4 articles concerning intelligence testing - please use articles with authors as there are many excellent books and journal articles on this subject.
Historical production data indicate that the diameter of a ball bearing is normally distributed with a mean of 0.525 cm and a standard deviation of 0.008 cm. Suppose that a sample of 16 ball bearings are randomly selected from a very large lot.
what types of film content caused problems for the major hollywood production companies during the late 1920s and early
Do attorneys have a moral obligation, beyond that stated in the law, to protect others from what they believe to be a planned crime?
The Part of gross domestic product that is created by the health care industry is growing faster than any other sector. WWrite down the three reasons for the unique increase in health care costs?
Texas is cited as a mixture of Traditionalistic and Individualistic political subcultures by most textbooks. If you were writing a new Texas government text how would you describe Texas' subculture? Why?
To achieve class and political solidarity, immigrant workers primarily had to overcome
What is the purpose of a provider contract? What intentions are enclosed in a provider contract and why is it important to detail party relationships, services, obligations, and objectives?
The star grouping Leo (the lion) extends for about 30° along a region close to the celestial equator. At low latitudes to midlatitudes, roughly how long will it take Leo to rise above the horizon.
Judonna and Candice were shopping at the mall. Judonna needed to go to the other end of the mall to get something. She said to Candice, “Meet me at 2:00 in front of Sears.” What language problem is reflected in this situation?
With which animal have researchers demonstrated the symbolic meaning of certain forms of communication used naturally in the wild
Heat escapes from the planet's surface into space by thermal radiation. Planets radiate almost entirely in the wavelength range of the
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