To boost sinking sales, a cola company has decided to market a new product: invisible cola. To test the popularity of the new product, it has offered invisible cola to 40 consumers and found that 2 people would buy it. a) If invisible cola is offered for sale, what it the probability that more than 10% of the consumers

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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To boost sinking sales, a cola company has decided to market a new product: invisible cola. To test the popularity of the new product, it has offered invisible cola to 40 consumers and found that 2 people would buy it.

a) If invisible cola is offered for sale, what it the probability that more than 10% of the consumers will buy it?

b) Find a 90% confidence interval (confidence coefficient = 1.65) for the expected percentage of consumers who will buy invisible cola.

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