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At some vacation destinations, "all-inclusive" resorts allow you to pay a flat rate and then eat and drink as much as you want. There has been concern about whether these deals might lead to excessive consumption of alcohol by young adults on spring break trips. You decide to spend your spring break collecting data on this issue. Of course, you need to take all of your friends on this funded research trip, because you need a lot of research assistants! You collect data on the number of drinks consumed in a day by people staying at all-inclusive resorts and by those staying at non-inclusive resorts. Your data include the following: All-inclusive resort guests: 10, 8, 13 Non-inclusive resort guests: 3, 15, 7
a. Conduct all six steps of an independent-samples t-test. Be sure to label all six steps.
b. Report the statistics as you would in a journal article.
c. Was there a shortcut you could or did use to compute your hypothesis test?
d. According to SPSS, the actual p value for the test statistic is .687. Use Excel to determine prep.
If one investment can give you $1200 with a probability of .20 and you could lose $800 with a probability of .80, and another investment can give you $600 with a probability of .70 and a loss of $300 with a probability of .30, which investment is ..
Construct a frequency distribution and construct a histogram for the following data and use seven intervals, starting with 30-39.
What is the probability that 25% or fewer male employees will indicate that they have to pick up the slack for moms working flextime?
Determine the mean and the standard deviation of the following frequency distribution. (Round your answers to 2 decimal places.)
Determine a 95% confidence interval for proportion of all voters in favour of candidate.
Automobile manufacturers are interested in the difference in reaction times for drivers reacting to traditional incadescent lights and to LED lights.
A recent study of cardiovascular risk factors reports that 30% of adults meet the criteria of hypertension. if 15 adults are assessed, what is the probabiliy that?
An instructor has a test bank consisting of 300 easy true-false questions, 200 difficult true-false questions, 500 easy multiple choice questions and 400 difficult multiple choice questions.
On average, how long does patient stay in ER? On average, how long does Potential Admit stay in ER? On average, how many patients are in the ER?
Use the relative frequency approach to construct a probability distribution for the number of tests taken.
Show how to generate a random variable from the exponential distribution function shown above. Show derivation of the equation.
Suppose there are two samples of size 6 and 7, with a rank sum of 58 in the sample of size 6. Using the Wilcoxon rank sum test, evaluate the significance of the results, assuming there are no ties.
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