The south beach diet was given to a volunteer group of 25 people who were atleast 25 pounds overweight. Eighteen people from the group lost atleast 20 pounds. What should we conclude about the effectiveness?
(a) Nothing, since the group knew they were using the diet
(b) The diet is effective in 72% of people
(c) Nothing, since the 25 people were not an SRS
(d) Nothing, since there was no control group
(e) People overweight by atleast 50 pounds will lose more than 20 pounds on the diet

Question

The south beach diet was given to a volunteer group of 25 people who were atleast 25 pounds overweight. Eighteen people from the group lost atleast 20 pounds. What should we conclude about the effectiveness?
(a) Nothing, since the group knew they were using the diet
(b) The diet is effective in 72% of people 
(c) Nothing, since the 25 people were not an SRS
(d) Nothing, since there was no control group 
(e) People overweight by atleast 50 pounds will lose more than 20 pounds on the diet

anonymous · Answer

Hmmm... what do you think?

anonymous · Answer

I really have no idea

anonymous · Answer

Lol i have no idea why i feel offended.. But i'll try to help you

acxbox22 · Answer

so the diet was effective for 18 out of 25 people right?
what is 18/25 as a percent?

anonymous · Answer

72%

acxbox22 · Answer

exactly ;)

anonymous · Answer

so its b?

acxbox22 · Answer

option e is totally random
option a and c dont make logical sense
so option b like you said is the most reasonable answer

anonymous · Answer

thank s so much, do you think you could help me with a few more?

acxbox22 · Answer

tag me and i will see if i can help