MMR Resources
What product did your group use for the taste testing?
Do you feel that the way that you set up the experiment truly led to a binomial distribution? In other words, were only 2 outcomes possible and did you prevent any bias?
Can you think of anything that you would change if you had to re-run the experiment? Explain why.
What did you think of the number of trials you had? too many? too few? just right? Explain why.
How many trials did you run?
How many successes were there (people who did correctly identified the name brand product)?
How many failures were there (people who did not correctly identified the name brand product)?
Before the trial, what was your taster’s probability of success? In other words, if there is not difference in taste, what would the probability of success be?
for "n = " enter your total number of trials
Leave "p = " at 0.5 since we're assuming there's no difference
Change the inequality to
P(X
Hit Compute to find the binomial probability of getting that result.
What was the probability from the site above? This probability represents the chance that students randomly picked the name brand on accident so the higher the probability, the less difference there is between the items.
Based on the probability you found in #9, do you think there's a significant difference between the name brand and the store brand items?
We typically say there is a difference if the probability of the outcome we got on #9 is 5% or less.
