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Which of the following is an example of a parametric test?
analysis of variance
one-sample t-test
Pearson correlation
all of the above
Describe a hypothesis upon which the manufacturer might wish to conduct a test concerning the relative effectiveness of the new fertilizer.
question suppose that we have two events a and b with pa.50 pb.60 and pa union b .40a. find pa i bb. find pa i
Use a 0.05 significance level to test the claim that the mean speed of all cars is greater than the posted speed limit of 70 mph. Based on the above situation compute the value of the test statistic.
Sample with size n = 100 has mean = 30. Assuming the population standard deviation is 8, construct 95% confidence interval for population mean.
an insurance company has 10000 automobile policyholders. the expected yearly claim per policy holder is 240 with a
a random sample is selected from a normal population with a mean of m 50 and a standard deviation of s 12. after a
the freshness and overall quality of milk depend upon the type of packaging used. the manager of a dairy company is
Test the overall significance of the regression model at α = .05 level. Please use the six-step hypothesis-testing framework we employed in class, and write out the last three steps in this table:
a survey found that womens heights are normally distributed with a mean 63.9 in and a standard deviation 2.4 in. a
In a poll of 500 randomly selected voters, 260 of them support the strategist's candidate. At = .05, is the political strategist's claim warranted?
Compute the Kappa statistic and its standard error regarding reproducibility of the diagnosis of dyspnea in the clinic.
What are the degrees of freedom of the t test statistic when testing whether the number of customers who make purchases affects weekly sales and what is the value of the standard error of the estimate?
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