1. Answer the question, considering an event to be \"unusual\" if its probabilit
ID: 3046886 • Letter: 1
Question
1. Answer the question, considering an event to be "unusual" if its probability is less than or equal to 0.05.
Assume that Andrea Henderson did a study of 300 randomly selected musical and it showed that 280 contained an F-Flat. Is it "unusual" for a musical composition to contain an F-Flat?
A) Yes
B) No
2. Johnny Flores was hired to estimate the likeihood that the guests at his friend's wedding would want a photo booth and obtained the set of survey responses to make his estimate. The encoding system for the data is: 1= FOR, 2= AGAINST. If the wedding were held today, estimate the probability that people were FOR having a photo booth at the wedding.
1,2,2,1,1,2,1,2,2,1,1,1,2,1,2,1,1,1,2,1
Explanation / Answer
Q1
Probability ( Musical composition contained F-Flat) = 280/300 = 0.933
Answer : No it is not unusual , because the probability is much greater than 0.05
Q 2) Total People = 20
No of people were FoR = 12
Probability (people were FOR having a photo booth at the wedding) = 12/20 = 0.6
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