View Answered Questions

Showing of 13 Questions
No. & Date AskedQuestion
# 314 :: 8/5/08
I am doing A/B testing on an ecommerce web site. I have been working on rule of thumb of 500 vistors through each page or 50 conversions on one of the. . .
# 368 :: 9/5/08
in a random sample of 200 person of a town 120 are found to the tea drinker.In a random sample of 500 person of another town 240 are found to be tea d. . .
# 376 :: 9/10/08
What statistical tests can I perform to compare two groups asked the same question, when the question has a yes/no answer and the sample groups are di. . .
# 388 :: 9/17/08
In Dallas, some fire trucks were painted yellow (instead of red) to heighten their visibility. During a test period, the fleet of red fire trucks made. . .
# 456 :: 10/4/08
I am trying to find out if a difference between two response sets is significant. I asked 98 boys what modalities they thought were attractive to girl. . .
# 515 :: 11/19/08
I run various A/B Split tests online. I always set all my tests for 10,000 visitors so page A and B are each equally rotated 5,000 times. My problem. . .
# 525 :: 11/28/08
Does lovastatin (a cholesterol-lowering drug) reduce the risk of heart attack? In a Texas study, researchers gave lovastatin to 2,325 people and an i. . .
# 537 :: 12/6/08
Can people really identify their favorite brand of cola? Volunteers tasted Coca-Cola Classic, Pepsi, Diet Coke, and Diet Pepsi, with the results shown. . .
# 555 :: 12/14/08
Complete the following: a. Select a variable. Compare the mean of the variable for a sample of 30 for one group with the mean of the variable for a . . .
# 662 :: 3/23/09
I need the formula to calculate z-score. My input is: Base Sample Size, Target Sample Size, Base Proportion, Target Proportion. I have a calculator . . .
# 782 :: 7/14/09
A 20-minute consumer survey mailed to 500 adults aged 25–34 included a \$5 Starbucks gift certificate. The same survey was mailed to 500 adults aged 2. . .
# 795 :: 8/13/09
Data from the MTF 2006 survey reveal that 71.5% (432 out of 604) of males and 74% (562 out of 756) of females reported trying alcohol. You wonder whe. . .
# 947 :: 4/29/12
Workers in 2 different mine groups were asked what they considered to be the most important labour-management problem. In Group A, 200 out of a random. . .