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You learn the average GRE score of private college graduates pursuing their MPH is 1500 with a standard deviation of 100. You want to determine whether CSU students are equally prepared. You randomly select 100 GRE scores of CSU graduates and find that the mean is 1545 with a standard deviation of 50. Do a hypothesis test to see if this difference is of any real significance at 0.05 . Apply and show all six steps.
About 5.5 percentage points in either direction from what would have been obtained by seeking out all Ohio State University female students." Do your results agree with this statement?
The probability that 0, 1, 2, 3 or 4 people will seek treatment for the flu during any given hour at any given emergency room is shown in the following distribution. What are the variance and standard deviation of X?
Score for the states eith graders on the examination is more than 260. At alpha equals 0.04 is there enough evidence to support the clim?
A sample of 3000 observations has a mean of 85 and a standard deviation of 10. The distribution is bell-shaped. Using the empirical rule, find what percentage of the observations fall in the intervals
a local social service agency is asked to determine areas in the greatest need of social support. the neighbourhoods
A relation R is defined on the set Z of all integers. In each case, prove that R is an equivalence relation. Find the distinct equivalence classes of R and list at least four members of each.
Determine the estimated regression equation that can be used to predict the star rating given the point values for execution, ease of use, and range of offerings.
one of dotcoms products has a width dimensional specification of 1.488 plusmn .005 inches. the process is in
Statistics means never having to say you"re certain." What defines the cohort? All patients from a particular healthcare plan?
The animals are ordered from a supply company, housed in an animal care facility not under the direct control of the experimenter, and are supplied on an as-needed basis.
State the correct decision and give justification for your decision.
the diameter of a brand of ping-pong ball is approximately normally distributed with a mean of 1.30 inches and a
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