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Patients with moderate to severe allergic reactions were trained to focus their minds on specific locations where their allergic donot bother them, such as a beach or a ski resort. In sample of 64 patients who received this training. suppose that 47 showed reduced allergic reactions and 17 showed an increase in allergic reactions. Are these results sufficient to conclude that the self hypothesis has a significant effect.
Construct a 90 percent confidence interval for the proportion of all kernels that would not pop. (b) Check the normality assumption. (c) Try the Very Quick Rule.
One bolt produced at this factory is randomly choosen and is found to be defective. what is the probability that it was produced by machine B?
Would you be willing to provide an example of both methods (step by step) described in your document for determining the forecast based upon the two different methods. Maybe just for one single city.
If you draw one ball from the urn what is the probability that it is blue or white?
With a 98% level of confidence a company producing street signs wants to make sure the length of their product is meeting quality standards.
Give the 90% confidence interval for the mean score in the population of all young women.
Any analysis required to check the required conditions (note that if you find that you cannot meet the required conditions for the test you expected to do, you must use the appropriate non-parametric test)
Assuming the percentages are based on independant simple random samples of 1,000 first year college students drawn each year.
Use a 0.05 significance level to test the claim of a cereal lobbyist that the mean for all cereals is less than 0.3g.
If we assume that the errors made by rounding off are iid and have a uniform distribution over the interval ( - ~, ~), compute approximately the probability that the sum of the integers is within two units of the true sum.
Suppose a bookie will give you $6 for every $1 you risk if you pick the winner in 3 ballgames. For every $1 bet, you either lose $1 or gain $6. What is the bookies expected earnings per dollar wagered?
Can we conclude that there is a difference in number of citations written between the officers? Use the 0.05 level of significance.
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