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1. A successive independent survey design and a longitudinal survey design both examine changes in responses over time. How do they differ in their approach?
2. Distinguish between demographic and epidemiological research.
Find the probability that a random sample of size 54, selected with replacement, will yield a sample mean greater than 4.1 but less than 4.4. Assume the means to be measured to the nearest tenth.
Explain how a pie chart can be constructed. If a data value had relative frequency r, at what angle would the lines defining its sector meet?
Find the empirical probability of an individual being born male - In the United States, more male babies are born than female. In 1998, 2,264,031 males were born and 2,187,419 females were born. Find the empirical probability of an individual bein..
explain why ms-within is not an appropriate error term demoninator for the repeated measures
a) What type of research uses numeric measurement data? b) What type of research uses a research hypothesis? c) What type of research does not use statistical data analysis?
If s(x) = [1-(x/100)]1/2, 0 ≤ x ≤ 100, evaluate a. 17p19 b. 15q36 c. 15|13q36 d. μ(36) e. E[T(36)].
Compute the mean of each of the 10 samples and list them. Explain how the mean of the means is equal, or not, to the population mean of the 100 listing prices from above.
The mean area of several thousand apartments in a new development is advertised to be 1250 sq. ft. An engineer measured a random sample of apartments: 1244 1245 1242 1245 1237 1245 1246 1232
Critically discuss some examples of descriptive statistics? Why are they used in research? What is a confidence interval?
el nino and the monsoon. the earth is interconnected. for example it appears that el nino the periodic warming of the
A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it.
In fact, the insurance company sees that in the entire population of homeowners, the mean loss from ?re is μ = $300 and the standard ndeviation of the loss is σ = $400.
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