SOLUTION: A hotel claims that 85% of its customers are very satisfied with its service. Complete parts a through d below based on a random sample of 7 customers.
What is the probabilit
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What is the probabilit
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Question 1182867: A hotel claims that 85% of its customers are very satisfied with its service. Complete parts a through d below based on a random sample of 7 customers.
What is the probability that less than 5 customers are very satisfied? Found 2 solutions by ikleyn, Boreal:Answer by ikleyn(52858) (Show Source):
You can put this solution on YOUR website! Fewer than 5 customers.
Do probabilities of 5,6,7 and subtract those 3 probabilities from 1.
for 5: 7C5*0.85^5*0.15^2=0.2097
for 6: 7*0.85^6*0.15=0.3960
for 7: 0.85^7=0.3206
they add to 0.9263
so the answer is the complement or 0.0737
