Estimated standard error for a sample
What is the estimated standard error for a sample of n = 4 scores with a variance of s2 = 36? Explain your response.
the square root of (36/4)
the square root of (36/3)
36/4
36/3
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Optimization of measurement (numerical goal)--even when achieved--can undermine a system. What alternative to optimization of a numerical goal is likely to serve us better?
The national average for the verbal portion of the College Board's Scholastic Aptitude Test (SAT) is 507 (The World Almanac, 2006). The College Board periodically rescales the test scores such that the standard deviation is approximately 100. Answ
Compute the estimated d and r2 to measure the size of the treatment effect.
If the lab technician takes 16 measurements and the variance of the measurements in the sample is 2.2, does this provide enough evidence to reject the claim that the lab technician's accuracy is within the target accuracy? State the null and alter
Under what circumstances can a very small treatment effect be statistically significant? Explain your response.
What is the effect of a large value for the estimated standard error? Explain your response.
A sample of n = 25 individuals is selected from a population with μ = 80, and a treatment is administered to the sample. Which set of sample characteristics is most likely to lead to a decision that there is a significant treatment effect? Expl
A hypothesis test produces t = 2.00 for a sample of n = 16 scores. What is the value of r2? Explain your response.
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