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A company produces component parts for an engine. Parts specifications suggest that 95% of items meet specifications. The parts are shipped to customers in lots of 200. Let X represent the number of defectives in a lot. Use normal approximation to find the following probabilities:
(a) What is the probability that more than 187 items will be non-defective in a given lot?
(b) What is the probability that at least 8 but less than 16 items will be defective in a given lot?
What is the probability that more than 25% of the business travelers say that the reason for their most recent business trip was an internal company visit?
Based on these results, is there significant difference between attitudes for males and for females? Use two tailed test with alpha = .05.
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identify the sampling technique used to obtain this samplea group of 240 adults are given numbers from 1-40. a ball is
Determine whether the following situations represent a right, left or two-tailed test: In 1997, 43% of Americans 18 years or older participated in some form of charity work.
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