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Statistics question: Need formula to determine effective sample size using the power analysis which includes 1) significance level or alpha, (2) effect size, (3) power (standard of 0.80 or 80%), and (4) sample size. Need to be able to calculate effective sample size knowing only alpha, effective size and power.
Regression and Correlation Methods: Correlation, ANOVA, and Least Squares - Calculate a one-way ANOVA to test the null hypothesis that the mean of each group is the same.
What are the mean and standard deviation of the sampling distribution of the mean for N = 16
A researcher is interested in gender differences in attitudes toward flying
The manufacturer of beer kegs claims that 95% of the kegs they produce do not leak after 5 years of use. A bar owner tests the manufacturers claim at the 0.05 significance level. She takes a sample of 200 kegs and finds 185 do not leak. Wha..
What is the standard error of this difference between the two means?
SPC is one of a number of tools which can be used to improve manufacturing quality standards - Outline two techniques which can be used to decide where to put SPC effort most effectively.
The Center for Epidemiologic Studies Depression Scale (CES-D scale) is often utilized to measure depressive symptomology (Radloff, 1977). It is a self-assessment that is completed by the individual. The CES-D contains 20-items rated on a 4-poin..
Calculate the mean, median, and standard deviation and get statistics on the original reaction time, separately for the three stimulus types. Comment on how the means compare for the three stimulus types.
Run the Wilcoxon rank-sum test to show whether there is a statistically significant difference between the mortality rates of children under the age of five years of the regions
Specialization topic is employee management
Let G = (V, E) be an undirected graph with V = {1, . . . , K}. Let C1, . . . , CL be the set of maximal cliques in G. Let p(x) = (1/Z)*exp [Sum_l=1toL(ψ_l(x_Cl))]
American Theaters knows that a certain hit movie ran an average (μ) of 84 days in each city, and the corresponding standard deviation (σ) was 10 days. The manager of the southeastern district was interested in comparing the movie's popularity in his ..
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