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The brand name of McDonald's has a 95% recognition rate. If a McDonald's executive wants to verify that rate by beginning with a small sample of 15 randomly selected consumers,

find the probability that fewer than 12 of the 15 consumers recognize the McDonald's brand name.

round the answer to three decimal places.
3 years ago

Answers

R_scott
one minus probability that 12 or more recognize

1 - [.95^15 + (15 * .95^14 * .05) + (105 * .95^13 * .05^2) + ...
... (455 * .95^12 * .05^3)]
3 years ago

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