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What is an interaction? Describe an example and identify the variables within your population (work, social, academic, etc.) for which you might expect interactions?
A hypothesis test is to be used to help determine if there is a difference between the proportion of 2 year college students and private university students that work at least 20 hours per week.
Critically discuss some examples of descriptive statistics? Why are they used in research? What is a confidence interval?
suppose your right knee is sore 15 of the time and your left knee is sore 10 of the time. what is the largest possible
Estimate the indicated probability by using the normal distribution as an approximation to the binomial distribution.
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 half the size. Indicate the resulting alpha and beta. Present an argument that your study is worth doing with the s..
suppose we select an srs of size n 100 from a large population having proportion p of successes. let p be the
he standard deviation of the sample proprortion is 5.3%. How large a sample (to the nearest person) would be required to reduce this standard deviation to 3.7%?
you are a real estate agent and you are trying to predict home prices for your clients that want to list their house
Suppose a single pineapple is selected at random from last years crop. What is the approximate probability that it weighs more than 35 ounces show work.
A catering company is buying equipment in order to set up their own store. They have a choice of two ovens that they can purchase for the store.
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.
a) What is the probability that for any day, the number of special orders sent out will be more than 4? b) What is the standard deviation of the number of special orders sent out daily?
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