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Estimate the required probability that the store will gross over $850.

Income Trevor is interested in purchasing the local hardware/sporting goods store in the small town of Dove Creek, Montana. After examining accounting records for the past several years, he found that the store has been grossing over $850 per day about 60% of the business days it is open. Estimate the probability the store will gross over $850

a) less than 5 out of 10 business days.

b) less than 6 out of the next 20 business days. If this actually happened, may it shake a person's confidence in the statement p = 0.60? Might it make a person suspect that P is less than 0.60? describe.

c) Additional than 17 out of the next 20 business days. If this actually happened, might a person suspect that p is greater than 0.60? describe.

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