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According to the Center on Budget and Policy Priorities article "Curbing Flexible Spending Accounts Could Help Pay for Health Care Reform" (revised June 10, 2009), flexible spending accounts encourage the over-consumption of health care; people buy things they do not need, otherwise they lose the money. In 2007, for those that did not use all of their account (about one out of every seven), the average amount lost was $723.Suppose a random sample of 150 employees who did not use all of their funds in 2009 is taken and an average amount of $683 was lost. Test the hypothesis that there is no significant difference in the average amount forfeited. Assume that σ = $307 per year. Use α = 0.05.a. Define the parameter.b. State the null and alternative hypotheses.c. Specify the hypothesis test criteria.d. Present the sample evidence.e. Find the probability distribution information.f. Determine the results.
1. in this exercise we will be building regression models for predicting house prices. we will be using data collected
Consider the particle size of a particular product.
State the null hypothesis for the non-oil-dependent/oil-dependent comparison. Calculate the difference between the means of the democracy scale for non-oil-dependent and oil-dependent countries, Calculate the standard error of the difference. Calcula..
What is Euthyphro's second definition of piety?
A survey of people in Iowa showed that 40 out of 400 prefer watching TV comedy shows. Another survey in Colorado showed that 90 out of 600 prefer watching TV comedy shows. At a 1% significance level, would it seem that the true proportions of p..
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Two fair dice are thrown and you are told that both of them show an even value. What is the probability that exactly one of them shows a six? (I don't understand how they got the answer)
What assumptions about the number of pedestrians passing the location in an hour are necessary for your hypothesis test to be valid?
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