a researcher wants to know if a new drug to fight depression works better than a placebo. Participants are divided into two groups that receive either Drug A or a Placebo. Then, depression ratings on a scale of 1-10 are collected. Please determine if there is a significant treatment effect of Drug A using a two-tailed alpha test with an alpha level of .05. chegg Drug A. Placebo 7 8 6 7 4 4 5 9 5 8
a researcher wants to know if a new drug to fight depression works better than a placebo. Participants are divided into two groups that receive either Drug A or a Placebo. Then, depression ratings on a scale of 1-10 are collected. Please determine if there is a significant treatment effect of Drug A using a two-tailed alpha test with an alpha level of .05. chegg
Drug A. Placebo
7 8
6 7
4 4
5 9
5 8
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 2 images