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4.21,5.55,3.02,5.13,4.77,2.34,3.54,3.20,4.50,6.10,.38,5.12,6.46,6.19,3.79,15.08
a. What descriptive summary measures would you use to present the data. which measure is the best to use and which is the worse and why?
b. What conclusion can you draw about the data.
The chi-square goodness of fit test can be used when we:
Based on this information, if department employee selects random sample of n = 9 containers, determine probability that mean volume for sample will be greater than 1.01 gallons?
Compute β-error of test in part (a) if true difference in mean burning rate is 2.5 centimeters per second.
Small bag of Skittles candies has following assortment: red (12), blue (5), orange (15), brown (0), green (16), and yellow (7). Create the probability distribution for x.
Find the Probability and prove that the given two events are mutually exclusive and independent or not.
Test the hypothesis that there is no difference in the mean scores of Exam 1 and Exam 2 against the alternative that the average is greater for the second exam.
Suppose that 50% of all people are opposed, evaluate probability of getting at least 89% opposed in survey of 1012 randomly selected people.
It is suspected that the mean turnover has changed and is not 6.0. Use the .05 significance level. State the decision rule.
Provide a brief description of the main features of these data from the scatter plot and Describe why you would use performance as the predictor variable and performane related pay as the dependent variable in such a model.
A sociologist wants to describe if the life expectancy of people in Africa is lesser than the life expectancy of people in Asia.
Determine a 95 percent confidence interval for the population mean.
Assume that the result is a sample size beyond what you can obtain. Use the compromise function to compute alpha and beta for a sample approximately half the size.
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