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List the steps involved in hypothesis testing using: a) the traditional/classical method; b) the probability-value method. Provide an example of each.
You take a random sample around town and calculate a p-value for your hypothesis test of 0.0913. What is the appropriate conclusion? Conclude at the 5% level of significance.
Suppose that 15% of all adults jog. An opinion poll asks a simple random sample of 500 adults if they jog. What is the sampling proportion in the sample who jog?
The structure of a two factor study can be presented as a matrix with levels of one factor determining the rows and the levels of the second factor determining the columns. With this structure in mind, describe the mean differences that are evalua..
At the 0.05 significance level, can Ms. Bridgend conclude that she is earning an average of more than $20 in tips?
What is the aim of multiple linear regression? Discriminate analysis? Canonical correlation? Multivariate analysis of variance?
One of the non-destructive tests (NDTs) for assessment of the integrity of concrete structures is ultrasonic pulse velocity testing. The test can signal that a concrete section is either intact or that a problem exists.
For each of the following, indicate whether or not you would expect it to have a strong seasonal component and why.
Determine the least square trend equation. Estimate the number of employees in 2008. By how much the number of employees decreases (or increases) per year on the average?
What is the likelihood the sample mean is greater than $22.50 but less than $25.00?
What is the probability of a false negative test (the probability that a person having muscular distrophy tests negative)?
A sociologist wants to determine if the life expectancy of people in Africa is less than the life expectancy of people in Asia.
Suppose that sales of lemonade and sales of brownies are independent, determine standard deviation in his revenue.
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