B: Percent for company: 2, 5, 29, 8, 21, 14, 13, 12 A: Percent for CEO: -1, 5, 21, 13, 12, 18, 9, 8 Left tailed, right tailed, or two tailed test?
it depends on what you are trying to test for.
please provide background for your test
Are America's top chief executive officers (CEOs) really worth all that money? One way to answer this question is to look at row B, the annual company percentage increase in revenue, versus row A, the CEO's annual percentage salary increase in that same company (Source: Forbes, Vol. 159, No. 10). A random sample of companies such as John Deere & Co., General Electric, Union Carbide, and Dow Chemical yielded the following data:
Do these data indicate that the population mean percentage increase in corporate revenue (row B) is different from the population mean percentage increase in CEO salary? Use a 1% level of significance.
so you are trying to find if there is a difference between the two... which test would you use for this?
if you don't know, what is the definition of each kind of test?
dont i need to test the mean of the paired differences
first answer your own question of what kind of test to use
thats all i need to know
left, right or two tailed. thats what the question is. and thats it
i thought it was two tailed
ok, so what is each kind of test testing for?
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