T distributions and circle
Read the t statistic from table of t distributions and circle the correct answer. A one tailed test (lower tail). a sample of 10 at a 0.10 level of significance; t=
a) 1.383b) -1.372c) -1.383d) -2.821
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The carburetors on Fords have 0.09 probability of failure, those on Renaults have 0.05 chance and those on Hondas have 0.02 chance of failure. If car with failed carburetor is selected at random, what is the probability that it is a Ford?
Sum of two nonnegative numbers is 1. State sum of square of one and twice square of other as the function of one of the numbers. Provide domain of function.
Determine equation of the cosine wave that is attained by shifting graph of y = cos x to the left 9 units and upward 2 units and which is horizontally compressed by the factor of 10 when compared to y = cos x.
Total revenue for selling x dozens is Revenue =xp= x(20-0.0002x). How many dozens should be sold to make the revenue of $500,000.
An ecologist claims that because of environmental influences, the mean life of Louisiana shellfish is 27 months. Feeling the claim is too low, a congressman decides to test the ecologists claim at a significance level of 5%.
What change in unemployment rate corresponds to the year when production is same as year before? Determine meaning of the coefficient -2 in Okun's law?
Determine the mean and SD for this data? Please employ language I can understand for working out this problem, thanks. I have to know how to figure this on my own.
If the third person is utilized to help complete task. And works with same efficiency as brian, find total time it would take to complete return if all three work together?
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