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mathematics
september 2019
01

Mathematics Questions and Answers September 01, 2019

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: Apps Cs Stratus Login Page G Google Follow Up Boss The normal curve below shows the distribution of units of a product sold over 360 days. The mean is 67 units and the standard deviation is 5 units. 57 62 67 72 77 8 Units Sold Q Use the empirical rule (68-95-99.7 rule) to answer the following questions. 1. Approximately what percent of daily

please answer all- thank you so much in advance 9 At a large factory 38 workers were tested as to how fast they could do a particular job. The mean and standard deviation of the times they took to do their job were 68 seconds, and 12 seconds. Calculate a 95% confidence interval for the average time to do the job for all workers in the plant. 10 It

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