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srs of 50 is taken from sample population what is the probability that the sample mean is higher than 85
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the diameter of pencils produced by a certain machine are normally distributed with a mean of 0.30 inches and a standard deviation of 0.01 inches. What is the probability that a randomly selected pencil will be less than 0.285 inches?
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Please see the document for a question about OLS estimators
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An article in Wood Science and Technology ( Creepin Chipboard, Part 3: Initial Assessment of the Influence ofMoisture Content and Level of Stressing on Rate of Creep Time toFailure, Vol. 15, 1981, pp. 125-144) describes the resultsof a study of the deflection (mm) of particleboard from...
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Hi Natalia: My Question was Explain and describe M/D/1 queuing system and provide an example
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researcher wants to estimate the average height on your campus. She wishes to estimate the mean height to within 3cm with 95% confidence. Assume the population standard deviation is about 12cm. What sample size should she use?
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70% of adults in a European city say that they enjoy using public transportation. If a random sample of 8 adults is selected from the city, find the probability that exactly 3 adults respond that they enjoy using public transportation.
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A certain town has 25,000 families. These families 1.6 cars, on the average; the SD is 0.90. And 10% of them have no cars at all. As part of an opinion survey, a simple random sample of 1,500 families is chosen. What is the chance that between 9% and 11% of the sample families will not own cars?
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2. Assume the cholesterol levels of adult American women are normally distributed with a mean of 190 mg/dL and a standard deviation of 26 mg/dL. a) What percent of adult women do you expect to have cholesterol levels at least 200 mg/dL ? (Round to tenths) b) What percent of adult women do you...
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how to determine the least square regression line equations for each of the 3 different regressions?
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