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August 30, 2015

Homework Help: stats

Posted by nick on Tuesday, August 12, 2008 at 9:41pm.

Nicotine (mg) Filtered Kings
Nonfiltered Kings

n1 = 21
n2 = 8

sample mean = 0.94
sample mean = 1.65

s = 0.31
s = 0.16



Suppose you were to conduct a test (at the 0.05 significance level) to test the claim that king-size cigarettes with filters have a lower mean amount of nicotine than the mean amount of nicotine in non-filtered king-size cigarettes.

For this test, the critical value (to 3 decimal places) is
and the test statisic (to 2 decimal places) is .

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