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Suppose A,B and C are three events of a sample space, S, all of which have no outcomes in common. It is possible that P(A) = 0.4, P(B) = 0.5, and P(C) =0.6. explain your answer
A business man must travel to five different destinations
Descriptive statistics (5-number summary, mean, mode, range and standard deviation) for each of the four variables along with an explanation of what the descriptive statistics tell us about the motion picture industry.
Let variable X represents the improvement in time for each assembly line worker. Let μ represents the average improvement in time for the population. Has the training improved the time required on the job? Please test the hypothesis use α=0.05 ..
A passage that contains a rhetorical fallacy
Calculate the percentage of variance explained for r = 0.53. Is this correlation clinically important and what is the r value listed for the relationship between variables 4 and 9?
Fall beyond or between the designated ages/scores.
1. Calculate the sample size needed given these factors: one-tailed t-test with two independent groups of equal size small effect size (see Piasta, S.B., & Justice, L.M., 2010) alpha =.05
Find the probability that exactly 15 babies are female and find the probability that no more than 12 babies are female.
Regression analysis is one of the most widely used statistical techniques in the social sciences. So, what is it? In your answer, apply some of the techniques we have learned to regression - e.g., point estimates, interval estimates, test statistics,..
How are the degrees of freedom for the chi-square hypothesis tests different from those of most other hypothesis tests? In most previous hypothesis tests, the degrees of freedom have been based on sample size.
Using the data on the growth rate of Money and inflation, run a regression of the rate of inflation on the rate of growth of the money supply
Descriptive Statistics Project Project #1This project gives you the chance to use all of the statistical techniques and concepts that are covered in the initial chapters of the text.Problem: Think of a question that can be answered by analyzing data.
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