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A statistical study reported that a drug was effective with a p-value of .042.
(a) Is this true? An effective sample may be found about 42 times in 1000 samples.
(b) Is the drug effective at alpha = 0.05?
(c) Would a drug that has a p-value of .087 be more effective?
Explain and give examples of how the particular outcomes of a study can suggest if a particular threat is likely to have been present.
Make your calculation supposing a two-sided two-sample t-test with a type I error (alpha) of 0.056
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Find out optimal assignment and calculate total minimum cost.
At the 0.05 level of significance, can we conclude Middletown students remained in their districts less time than Brockton students? Make use of 5-step hypothesis testing procedure.
The population of lengths of aluminium coated steel sheets is normally distributed with a mean of 30.05 inches and a standard deviation of 0.20 inches. A sample of four metal sheets is randomly selected from a batch. What is the possibility that t..
In how many different ways can 5 songs be arranged if a particular song must be the first on the EP?
What happens to the confidence interval and the power of the test at a particular point of interest. As one increases the sample size of a test, all else remaining the same.
Two mating parts have critical dimensions x1 and x2 as shown below. Assume that x1 and x2 are normally distributed with means 1 and mean2 and standard deviations s1 = 0.400 and s2 = 0.300.
The total population of car passengers involved in traffic accidents are classified into six categories: two factors (one with 2 levels and one with 3 levels) crossed.
Determine the probability that the project will be completed in 90 days or less.
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