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Explain why the polls that are so frequently quoted during early returns on Election Day TV coverage are an example of cluster sampling.
a) Election-day polls are taken from voting precincts selected because they are believed to be representative of all voters.
b) Election-day polls are taken from small clusters of each district.
c) Each state is regarded as a cluster.
d) None of the above.
Determine the coefficient of determination. Assuming a direct relationship between the variables, what is the coefficient of correlation?
Solve the equations using linear algebra
The results of inspection of DNA samples taken over the past 10 days are given below. Sample size is 100.
Findout the variance also standard deviation for the 2 distributions above. Evalute the variation of the data sets.
What is approximately the largest sample mean of another sample of n= 16 participants you would expect to obtain from this finite population?
An independent-measures research study was used to compare two treatment conditions with n = 4 participants in each treatment. The first treatment had a mean of M = 58 with a variance of s^2 = 28, and the second treatment had M = 52 with s^2 = 36.
Based on this sample information, develop a 90 percent confidence interval for the population mean yearly premium.
LPP using the graphical method. Solveout the following linear programming problem utilizing the corner point method.
What is the probability the average of the sample is more than $38000 and What is the standard deviation of the sample mean
She randomly samples 67 CFOs and finds that 40 of them get their money news from newspapers. Does the test show enough evidence to reject the findings of Robert Half International? Use a = .05.
Founder of modern probability and statistics theory Cardano asserted that if one throws a die three times the chance that a given number will show at least once is 50 percent. This is now recognized as the wrong answer. Calculate, what is a probab..
Utilizing the .05 level, do the results support the psychologists' theory. A psychologist theorized where people can hear better when they have just eaten a large meal.
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