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1. Hey guys,

having a bit of difficulty with this question.....
Fifty people participate in a Pepsi versus Coke taste
test. The trial participants are given two samples (in a random order) and asked
to say which sample they prefer. Prior to performing the taste test, the
researcher claims that 35% of people prefer Pepsi to Coke. Determine the
probability that:
1. fewer than twenty-eight participants prefer Pepsi (to 4 dec pl)
2. at least 23 people preferred Pepsi (to 3 dec pl)

Any help would be much appreciated.

Thanks
2. Are u asking if Coke or Pepsi is better tasting? I always buy Coca, in the hope that there is some cocaine inside of the cola !!!
3. (Original post by muggsy)
Hey guys,

having a bit of difficulty with this question.....
Fifty people participate in a Pepsi versus Coke taste
test. The trial participants are given two samples (in a random order) and asked
to say which sample they prefer. Prior to performing the taste test, the
researcher claims that 35% of people prefer Pepsi to Coke. Determine the
probability that:
1. fewer than twenty-eight participants prefer Pepsi (to 4 dec pl)
2. at least 23 people preferred Pepsi (to 3 dec pl)

Any help would be much appreciated.

Thanks
You have a Binomial Distribution with n = 50 and p = 0.35

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