A good reason for a market researcher to use a stratified random sample rather than a simple random sample is:

A. convenient data collection
B. to collect data at lower cost
C. to reduce unwanted variability
D. to eliminate bias
E. to collect data systematically

Question

A good reason for a market researcher to use a stratified random sample rather than a simple random sample is:

A. convenient data collection
B. to collect data at lower cost 
C. to reduce unwanted variability 
D. to eliminate bias
E. to collect data systematically

hockeychick23 · Answer

@jim_thompson5910

jim_thompson5910 · Answer

this page may provide the answer. I'm not 100% sure, but I have a good feeling of it http://dissertation.laerd.com/stratified-random-sampling.php look at the "Advantages of stratified random sampling" section on the last page

hockeychick23 · Answer

ok thanks, i think its to collect data systematically but I'm not positive

jim_thompson5910 · Answer

no, it says it's done to reduce bias and to make the sample more representative

so that's what I'm thinking the answer is

jim_thompson5910 · Answer

attachment

hockeychick23 · Answer

oh its to eliminate bias? i thought it was between C and E

jim_thompson5910 · Answer

I found this page http://stattrek.com/survey-research/stratified-sampling.aspx which offers a comparison of the two methods

hockeychick23 · Answer

ok thanks, based on what i read i think I'm  going to go with C

jim_thompson5910 · Answer

well I'm still thinking D but you could be right

hockeychick23 · Answer

I got it right :)

jim_thompson5910 · Answer

sorry about that lol, I guess I mixed up something else, idk