SOLUTION: A pharmaceutical company is testing a new cold medicine to determine if the drug has side effects. To test the drug, 7 patients are given the drug and 8 patients are given a place

Question 1189882: A pharmaceutical company is testing a new cold medicine to determine if the drug has side effects. To test the drug, 7 patients are given the drug and 8 patients are given a placebo (sugar pill). The change in pulse rate (beats per minute) after taking the pill was as follows:
Given drug: 3 7 3 6 2 5 5
Given placebo: 2 4 1 1 3 0 2 3
Test to determine if the drug raises patients’ pulse rate more than the placebo using α = 0.025

Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
this is a 2-sample t
Ho: mu drug<=mu placebo
Ha; mu D > mu P
alpha=0.025 p{reject Ho|Ho true}
test is a 2-sample t (0.025, df=14)=2.145
mean s1=4.429 s1=1.81
mean s2=2.0 s2=1.31
t=(s1-s2)/sqrt( (s1^2/n1+(s2^2/n2))
=2.429/sqrt(0.468+0.215)
=2.94
reject Ho and the drug raises the pulse rate more than the placebo, because t value in critical zone.
p-value=0.0069

RELATED QUESTIONS
A pharmaceutical company is testing the effectiveness of a new drug for lowering... (answered by stanbon)

A pharmaceutical company is testing the effectiveness of a new drug for lowering... (answered by richwmiller)

Hi. I'm having trouble with a statistics question. I want to verify that the answer I got (answered by stanbon)

A pharmaceutical company is developing a new drug. The level of the new drug reduces by... (answered by FrankM,Theo)

Imagine a subject is taking part in a study to test a new cold medicine. The probability... (answered by ikleyn)

A certain study reveals that 3% of all patients suffer side effects from a certain drug.... (answered by richwmiller)

PLEASE HELP!!! It is known that a certain prescription drug produces undesirable side... (answered by stanbon)

PLEASE HELP! It is known that a certain prescription drug produces undesirable side... (answered by stanbon)

4. A pharmaceutical company tested two new flu vaccines intended to boost immunity. In (answered by lynnlo)