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Suppose a random sample of 100 observations from a binomial population gives a value of p^=0.46 and you wish to test the null hypothesis that the population parameter p is equal to 0.50 against the alternative hypothess that p is greater than 0.50
a) noting that p^= 0.46, does p^ appear to contradict the null hypothesis?
b) use large sample z test to test ho: p=0.50 against the alternative hypothesis, ha: p>0.50 use alpha = 0.05, find the rejection region for the test
c) calculate the value of the test statistic (z = ? )
d) what is the conclusion of the test, reject or not reject
e) find and interpret the observed significance level of the test, what is the p value of the test?
Suppose A,B and C are three events of a sample space, S, all of which have no outcomes in common. It is possible that P(A) = 0.4, P(B) = 0.5, and P(C) =0.6. explain your answer
The terms of the sale were 2/10, n/30. Harwell uses the net method of accounting for cash discounts.
What gives rise to the currency exposure at AIFS?
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General Mills reported the following information in its 2011 financial statements ($ in millions):
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In the absence of any policy intervention, will this consumer consume more or less in non-housing consumption given the current crisis?
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A manufacturer creates widgets whose mass has mean 5 and standard deviation sigma. Ten widgets are shipped, and the shipment will be rejected if any of the widgets has mass = 7. Give the largest value sigma can be such that the probability of reject..
A randomized, controlled experiment investigated
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Determine whether the given value is a statistic or a parameter.
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The probability that a given bird house will be returned for a refund is 0.04. Suppose that 30 bird houses are sold on a particular day. Find the probability that exactly 2 of those bird houses will be returned for a refund.
systolic and diastolic blood pressure of femalesthe following table represents systolic and diastolic blood pressure
Find a research article that uses a confidence interval. Give either the citation for it or the website address at which you found it. Discuss what the research was trying to show, as well as the results from the confidence interval. Give a little bi..
Determine the posterior probabilities, given the following prior and likelihood probabilities.Prior probabilities P(s1) = .25 P(s2) = .40 P(s3) = .35 Likelihood Probabilities
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