1. The Coca-Cola Company has 40% of the cola market. Determine the probability that a sample proportion forn= 30 is within 0.10 of the true proportion of 0.40, which is the proportion of cola drinkers who prefer a Coca-Cola drink. In this particular market, the population size of those who drink cola is 50.

Not enough information given to make calculation.

0.9198

0.7372

0.3686

0.4599

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1. The average sales per customer at a home improvement store during the past year is $75 with a standard deviation of $12. The probability that the average sales per customer from a sample of 36 customers, taken at random from this population, exceeds $78 is:
2. The Sunbelt City Peewee baseball organization has ordered 48 dozen balls from the Liteflite Company for use in its summer program. The company has guaranteed a 10% discount on the total cost if 32 or more of the balls are defective. Experience in the past has shown 5% defects. A sample of 50 balls will be taken, and the discount will be given if the sample proportion of defective balls is at least 32 in 48 dozen.What is the probability that the organization will get the 10% discount?