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Question
Interpret the following results from a t-test (alpha was set at 0.05).
Experimental Group
Control Group
(n=28) (n=23)
Total Cholesterol (TC) 180 205
Standard Deviation (SD) 10.4 10.2
t = 1.8, p = 0.08
A.Subjects in the experimental group had statistically significantly lower TC levels than subjects in the control group
B.There was no statistically significant difference in the TC levels before and after the experiment
C.There was no statistically significant difference in the TC levels for the two groups
D.There was likely a Type I error made in this study
Standard deviation of this poll is 4%. What would be standard deviation if sample size were increased from 83 to 190?
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according to u.s. news amp world report data in 1995 tuition costs at indiana university a public university were 2984
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A company manufactures a homeopathic drug that it claims can reduce the time it takes to overcome jet lag after long distance flights.
a ucla researcher claims that the life span of mice can be extended by as much as 25 when the calories in their food
A report in a medical journal notes that the risk of developing Alzheimer's disease among subjects who regularly opted to take the drug ibuprofen.
A nickel, two dimes, and two quarters are in a cup. We draw three coins, one at a time, without replacement.
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Identify the number of conditions in a factorial design on the basis of knowing the number of independent variables and the number of levels of each independent variable.
Calculate a95%confidence intervalfor theproportion of seniors who expectIRAs to betheir primarysourceof income in retirement.
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