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Suppose you roll a standard die 2000 times and let X be the sum of the values you get. Using the Central Limit Theorem, for what value of a is P[X >= a] approximately equal to P[N(0,1) >= 2] ?
Using the 0.10 level of significance, is there evidence that the population mean is above $300?
Supposing a linear relationship, use the least squares method to find the regression coefficients b 0 and b 1 .
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
What was the critical F value chosen?
At the .01 significance level, can we conclude that the 30-yeer mortgage rate for small banks is less than 6 percent? Estimate the p -value.
If a single test is run and indicates that oil is present, what is the revised probability that oil is actually present?
Give an example of a hypothesis test. State what the Null and the Alternative hypotheses.
Show that theta~ = u(X) is an unbiased estimator of theta, where u(0) = 1 and u(x) = 0 if x =1,2, ... Compare the MSEs of theta(hat) and theta~ for estimating theta = e^(-m) when m=1 and m=2
Find the percentage of buyers who said their price range is between $150,000 and $153,300.
After the presidential debates, a random sample of 1200 voters showed that 540 favored the Democratic candidate; 480 were in favor of the Republican candidate; 40 were in favor of the Independent candidate, and 140 were undecided. At a 1% level of..
Suppose there is no cyclical component. Quarterly billing for water usage is shown below describe summer billing for year 5.
Conduct an analysis of variance
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