# Question: A University of Florida economist conducted a study of Virginia

A University of Florida economist conducted a study of Virginia elementary school lunch menus. During the state-mandated testing period, school lunches averaged 863 calories (National Bureau of Economic Research, November 2002). The economist claimed that after the testing period end, the average caloric content of Virginia school lunches dropped significantly. Set up the null and alternative hypothesis to test the economist’s claim.

## Answer to relevant Questions

The Sloan Survey of Online Learning, “Making the Grade: Online Education in the United States, 2006,” reported that 60% of college presidents believe that their online education courses are as good as or superior to ...A random sample of 64 observations produced the following summary statistics: = .323 and s2 = .034. a. Test the null hypothesis that µ = .36 against the alternative hypothesis that µ ≠ .36, using a = .10. b. Test the ...How does the observed significance level (p -alue) of a test differ from the value of a? For each of the rejection regions defined in Exercise 8.59, what is the probability that a Type I error will be made? In Exercise 8.59 For each of the following rejection regions, sketch the sampling distribution of t and ...Suppose a random sample of 100 observations from a binomial population gives a value of p = .69 and you wish to test the null hypothesis that the population parameter p is equal to .75 against the alternative hypothesis that ...Post your question