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The waiting time for an individual to be served in a cafeteria is a random variable haiving an exponential distribution witha a mean value of 4 minutes. What is the probability that you will be served in less than three minutes on 4 of the next 6 days.
Cores on two tests have a bivariate normal distribution; and that correlation of 2 scores is 0.8. Determine the probability that sum of the student's scores on 2 tests will be greater than 200?
American Demographics reported the results of a survey on the planning habits of men and women. In response to the question.
Find the probability that a women develops breast cancer given that she has a family history of breast cancer._____________
Define Autocorrelation in the following terms. In which type of regression is it likely to occur? What is the negative impact of autocorrelation in a regression?
To begin with, I have an example problem that asks to find a complete solution for: y'+ 2xy = x. The text says to multiply both sides by e^int a(x) dx
The level of significance selected is 0.01 and 26 accounts are sampled. What is the critical value? Based on a sample size of 25?
The standard deviation of this poll is 4%. What would be the standard deviation if the sample size were increased from 93 to 187?
Variance of 4.2 and mean of 23.2 were calculated. Find out 95% confidence interval on mean and standard deviation. Describe any potential problems with this analysis.
A pie company claims that the number of pies it sells daily is 1600. The President of the company wants to test the accuracy of this claim. He finds a random sample of 36 days' sales shows that the average daily sales were 1500 pies.
The Allbest software company owns two computer-manufacturing plants. Each plant produces the Ultimate computer model. Plant measurement has determined that 28 out of 452 tested computers at Plant A were defective and that 21 out of 505 tested at p..
A marketing analyst was studying the readability of two advertisements, each produced by a major company, and printed in the newspaper.
Please summarrize, find the most important formulas, and explain a solve problem for each of this statictics topics: A. Simple regression and correlation B. Multiple regression and correlation
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