Mathematics, 05.05.2021 06:50 magicallyhello
A random sample of 16 persons was used in a study of the effectiveness of a new drug used in the treatment of poison ivy. Each person had a small portion of one arm exposed to poison ivy and allowed a rash to occur. The new drug was then applied to the infected area twice daily until the rash disappeared. The results are shown below
= 2.4 days
S = 1.4 days
a) Can we conclude that the true mean is less than 3.0 days?
b) What is a 95% C. I for the true mean?
3) In the above sample of 16 persons, 5 persons required 6 days or more days of treatment before the rash was gone.
a) Can we conclude that, in the general population, more than 25% of those using the new drug will require at least 6 days of treatment?
b) What is a 95% C. I. for the true proportion?
Answers: 1
Mathematics, 21.06.2019 21:30, peytonamandac9114
Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true
Answers: 2
Mathematics, 21.06.2019 23:00, miahbaby2003p2af1b
Prove that 16^4-2^13-4^5 is divisible by 11.
Answers: 1
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