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Calculate the sample size needed given these factors: one-tailed t-test with two independent groups of equal size small effect size alpha =.05 beta = .2 Assume that the result is a sample size beyond what you can obtain. Use the compromise function to compute alpha and beta for a sample half the size. Indicate the resulting alpha and beta. Present an argument that your study is worth doing with the smaller sample.
What was the total number of participants surveyed for the study and what was the total number of participants who completed the entire survey?
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.
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.
Describe the discrete-time Markov chain (X(t)) and transition probability matrix What is the probability that a faculty member leaves the department on "bad terms"?
Festival Histogram: Beginning with in the text on spotting outliers, correct the type in the data as directed - create a separate histogram for each day, Day1, Day2, and Day3, using the hygiene variable for all three days. Include the normal curve
A sample of 10 executives indicated that they spent an average of $11.30 with a sample standard deviation of 0.56 on lunch. Let = 0.05. What are the critical values?
Calculate the regression equation for this data
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?
Difference between the variances in assembly times (in seconds) of employees trained in a computer-assisted, individual-based program and those trained in a team based program?
What is the conditional probability that a student likes gospel music if we know that he or she likes country music?
Prepare a Scilab script to evaluate the volumetric flux of smoke in a plume produced by a fire of given HRR Q' The plume loses α percent of its heat by radiation and β percent by other means.
Write up your lab experience including: the necessary steps (broadly, not detail with keystrokes) to collectpersistent data, the ease of use of the software
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