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Discussion Post: Nonparametric Tests
Discuss the difference between parametric and nonparametric statistical tests; be sure to discuss the type of data in your differentiation. Come up with a hypothetical scenario (it can be your dissertation if it applies) for using a nonparametric test. Include the variables to be measured and explain why a nonparametric test is most appropriate.
A political pollster is conducting an analysis of sample results in order to make predictions on election night. Assuming a two-candidate election.
A test of 45 capsules had a mean weight of 20.9 milligrams and a standard deviation of 0.3 milligrams. Test the makers claim at the 95% confidence level.
the following table shows part of the probability distribution for a random variable x.x fx0 0.21 ?2 0.153 ?4 0.15a.
Outline the contingency plan a retailer could have in the event of each of these occurs:
The value of R-square indicates the amounts of variation in the dependent variable that is explained by the independent variable.
Which of the following would NOT be considered and potential pitfall for a researcher? Unconscious bias on the part of the researcher
A researcher used stepwise regression to create regression models to predict Birthrate (births per 1000) using five predictors:
Self-construal and comparison standard. Cheng and Lam (2007) noted that some people think of themselves independently of others (independent self-construal).
Calculate s (standard deviation) and A.D. (average deviation) for the following sample: 2, 2, 6, 9, 10, 10, 15, 18, 18, 20.
If they must form an ethics subcommittee of 4 members, how many different subcommittees are possible?
Review the following data where patients with high blood pressure are given a drug that is thought to lower their blood pressure.
Compute mean, standard deviation, coefficient of variation and 5 key percentiles for these data.
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