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A population consists of three housing units, where the number of rooms in each unit is 1, 3 and 4.
a) What is the population distribution?
b) What is the mean of this population distribution?
c) If a random sample without replacement of 2 housing units will be picked from the population, what is the sampling distribution of the sample mean number of rooms?
d) If a random sample with replacement of 2 housing units will be picked from the population, what is the sampling distribution of the sample mean number of rooms?
e) What is the mean of the sample means from all possible samples in d)?
f) Compare your answers in b), and e).
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State which model the data in the table follows.- Plot the scatter diagram when X = life expectancy and Y = crude birth rate and fit a regression line.
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Let μ1 represent the mean leisure hours of adults with no children under the age of 18 and μ2 represent the mean leisure hours of adults with children under the age of 18.The 95%confidence interval for left parenthesis mu 1 minus mu 2 right paren..
Do you think an F-ratio of 1 would lead you to conclude that there is no treatment effect? Why? Justify your answers with examples.
The average hourly wage last year for members of the hospital clerical staff in a large city was $6.32. The standard deviation of the population was $.54. This year a sample of 50 workers had an average hourly wage of $6.51. Test the claim at alph..
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1. State the null hypothesis and the alternate hypothesis.
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The weekly proportion of storage tank capacity that is utilized at a regional hazardous liquid waste receiv ing site is an outcome of a Beta(8, 1) random variable. At the end of each week the storage tank is emptied. A random sample of a year..
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