Distribution for a hypothesis test or confidence interval
Explain how you would select a distribution for a hypothesis test or confidence interval?
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If IQ scores are normally distributed with a mean of 100 points and a standard deviation of 15 points, what proportion of test takers have a score equal or greater than 115?
What are the Z scores above and below the mean that contain the middle 90% of a normal distribution?
To calculate beta requires making a "what if" assumption about the true population parameter, where the "what-if" value is one that would cause the null hypothesis to be false.
What kind fo test should we use to evaluate whether there are differences in the proportion of people with cancer in the different power line exposure groups? State any assumptions that are required to perform the test and evaluate whether they ar
Let X have the cumulative distribution function F(x) = 1-e^-x-1, x > -1. Find µ of X by using the MGF of X.
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1. In exponential smoothing, if the smoothing constant, alpha, is 1, you will get the same forecast as obtainable using the last period technique.
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