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A test for equal variances is conducted at the 5% level of significance. Sample sizes are n1=31 and n2=31. The test statistic is F=6.4071. What do you conclude about the variances of the populations from which the samples were drawn?
What information does calculating standard deviation provide? How is the z-score related to standard deviation? What values do you need to calculate a z-score
for the following problem i have solved a through c and used a summation of combinations to solve for alpha 0.009982 i
A researcher conductued a study of the access speed of 35 hard drives and concluded that his maximum error of estimate was 35. If he were to conduct a second study to reduce the maximum error of estimate to 7, about how many hard drives should he ..
A certain poultry farmer finds that 8% of his eggs are underweight and that 12% weigh over 70 grams. Estimate the mean and standard deviation of his eggs.
Using the following information for R2, k and N, calculate the value of F statistics for testing the over all multiple regression equation
What must be the forward price of the pound for delivery 1 year from now?
What is the probability that a simple random sample of automobile insurance polocies will have a sample mean within 25.
let x be the number of successes in seven independent trials of a binomial experiment in which the probability of
Is there a general pattern? Do you think that the comparison of Alabama and Alaska that we noticed could be part of a general pattern
The Human Resource department is tasked with securing interns, recruiting and training volunteers, and overseeing all aspects of hiring and acclimation.
The scores on an exam are normally distributed with mean 74 and standard deviation 9 points. What is the probability a random student scored.
We know that for a probability distribution function to be discrete, it must have two characteristics. One is that the sum of the probabilities is one.
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