Question
9. A brand advertises that the mean nicotine content of their cigarettes is 1.5 milligrams. To test whether the mean nicotine content is actually higher
9. A brand advertises that the mean nicotine content of their cigarettes is 1.5 milligrams. To test whether the mean nicotine content is actually higher than advertised, a random sample of 100 cigarettes of this brand was selected. The average nicotine content of the sample was found to be 1.53 milligrams with a standard deviation of 0.1 milligrams. To find the p-value for testing the hypotheses H0: = 1.5 versus Ha: > 1.5, assume the test statistic is t = 3.00, so which probability is the p-value?
Group of answer choices
a. P(Z < 3.00)
b. P(T < 3.00)
c. P(Z >3.00)
d. P(T > 3.00)
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