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Type I error and Type II error:
Give an example of a hypothesis test. State what the Null and the Alternative hypotheses. Explain how you would settle on a reasonable level of significance for your scenario. Also explain what the type I and II errors would be if you reached the incorrect conclusion.
Determine the coefficient of correlation between the two variables. Interpret the value.
At the 5% significance level, if the sample proportion is .45, and the standard error of the sample proportion is .035, the appropriate conclusion would be:
Create a set of n observations from the binomial distribution with 1 trial and the event probability of 0.007, where n is your answer.
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.
In a bumper test, three types of autos were deliberately crashed into a barrier at 5 mph, and the resulting damage (in dollars) was estimated. Five test vehicles of each type were crashed, with the results shown below. Research question: Are the ..
What is the probability that the mean contents of a six-pack are less than 12 ounces and what is the chance I find at most two defectives in the sample
Analysis of data sets assignment
Is there evidence of difference in median performance between two methods? (Use α = 0.05.)
The sample proportion of large gloves for each location is and . (Round your answers to 4 decimal places.)
Suppose the probability of the worst-case scenario increases Compute the expected value of perfect information
Find the percent of a standard Normal model found in the given region. Round to the nearest hundredth of a percent.
At the .05 significance level, is there a difference in the mean number of miles traveled per month between Cincinnati and Pittsburgh employees? Use the five-step hypothesis-testing procedure.
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