Marketing claims. A company claims that 60 % of the households in a given community use its product. A competitor surveys the community, using a random sample of 40 households, and finds only 15 households out of the 40 in the sample use the product. If the company’s claim is correct, what is the probability of 15 or fewer households using the product in a sample of 40 ? Conclusion? Approximate a binomial distribution with a normal distribution
Marketing claims. A company claims that 60 % of the households in a given community use its product. A competitor surveys the community, using a random sample of 40 households, and finds only 15 households out of the 40 in the sample use the product. If the company’s claim is correct, what is the probability of 15 or fewer households using the product in a sample of 40 ? Conclusion? Approximate a binomial distribution with a normal distribution
Solution Summary: The author calculates the probability that 15 or fewer households use the product in a sample of 40 households.
Marketing claims. A company claims that
60
%
of the households in a given community use its product. A competitor surveys the community, using a random sample of
40
households, and finds only
15
households out of the 40 in the sample use the product. If the company’s claim is correct, what is the probability of
15
or fewer households using the product in a sample of
40
? Conclusion? Approximate a binomial distribution with a normal distribution
Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.
Please could you provide a step by step solutions to this question and explain every step.
Could you please help me with question 2bii. If possible could you explain how you found the bounds of the integral by using a graph of the region of integration. Thanks
Let A be a vector space with basis 1, a, b. Which (if any) of the following rules
turn A into an algebra? (You may assume that 1 is a unit.)
(i) a² = a, b² = ab = ba = 0.
(ii) a²=b, b² = ab = ba = 0.
(iii) a²=b, b² = b, ab = ba = 0.
Chapter 11 Solutions
Finite Mathematics for Business, Economics, Life Sciences and Social Sciences Plus NEW MyLab Math with Pearson eText -- Access Card Package (13th Edition)
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