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A distribution of scores has mu = 40 and sigma = 18
a. Describe the distribution of sample means based on samples of n=36 selected from this population.
b. Of all the possible samples of n=36, what proportion will have sample means greater than 43?
c. Of all the possible samples of n=36, what proportion will have sample means less than 34?
Given are five observations collected in a regretion study on two variables: What is the value of the standard error of the estimate?
how would you find the probability that one of several mutually exclusive events
computing the probability values using normal distribution.the mean price of new homes from a sample of houses is
In studying the behavior of air support roofs, the random variables X, the inside barometric pressure (in inches of mercury) and Y, the outside barometric pressure are considered. Assume that the joint density is given by
Find the value of k. Find the cdf of X. Find the mean and the variance of X.
You are given following information on residents' responses, broken down by sex. Determine the probability that resident is a man and opposes the bridge?
suppose that a financial analyst wants to evaluate the variability of the prices of a new stock in the market. the
Hypothesis test for the difference between two means - To make the data comparable, certain features, such as the deductible amount and limits of liability, are standardized.
P(A 1 )= .20, P(A 2 ), and P(A 3 )= .40. P(B 1 I A 1 ) = .25. P(B 1 I A 2 ) = .05. P(B 1 I A 3 )=.10. Use Bayes' theorem to determine P(A 3 I B 1 )
A self proclaimed psychic was tested with 100 cards face downand asked to determine what symbol, out of 5 possible symbols the card hado n it. How many would this person need to get right for us to be convinced at the 99% level tha t this person is a..
Suppose ages for first marriages have normal distribution with standard deviation of four years. Determine the probability that the person getting married for first time is younger than 23 years of age?
Use Hypothesis Testing and the data in the course materials folder to analyze the difference in milk production in California. Formulate both a numerical and verbal hypothesis statement regarding your research issue.
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