Refer back to the pizza-delivery Try It exercise. The mean delivery time is 36 minutes and the population standard deviation is six minutes. Assume the sample size is changed to 50 restaurants with the same sample mean. Find a 90% confidence interval estimate for the population mean delivery time.

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A: Given data: For urban area: 8.3, 0.9, 2.9, 5.6, 5.8, 5.4, 1.2, 1.0, 1.4, 2.1, 1.3, 5.3, 8.8, 6.6,…

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Q: so what precentage would be correct for this question   a.16% b.18% c.22% d.20%

A: The mean is 114.8 and standard deviation is 13.1.

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A: Suppose the random variable X defines the assembly time for a high tech computer chip.

Q: A population of values has a normal distribution with μ = 144.5 and o= 85.5. You intend to draw a…

A: Given The data is as follows: Population mean, μ=144.5 Population sd, σ=85.5 Sample size, n=198

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Q: Find The mean, median; mode & standard deviation For the following numbers. -2.3578

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A: Given The data is as follows: 5, 7, 2, 8, 5, 5, 6, 9, 7, 9, 4, 9 CL=0.99

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Q: For a confidence level of 99% with a sample size of 11, find the critical t value.

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A: Given The data is as follows: Population mean, μ=60,000 Population sd, σ=5000 Sample size, n=48…

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A: Given that.   X~N( μ , ?)   μ=212.5 , ?=93.1   Z-score =( x - μ )/?

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A: Given that.   X~N( μ , ?)   μ=260 , ?=10   Z-score =( x - μ )/?

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A: 24. The given interval was AED 191,AED 290.

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Q: As discussed in the Wall Street Journal story, weighting is designed to adjust poll results to give…

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Q: Based on data from the National Health Survey, women between the ages of 18 and 24 have an average…

A: The mean is 114.8 and standard deviation is 13.1.

Q: Problem 3. Please answer the following questions succinctly. Most of them can be answered with a…

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Q: A biotechnology company produced 187 doses of somatropin, including 11 which were defective. Quality…

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A: From given :There are 31 student in bus School A = 8 School B = 31-8 =23

Q: In the country of United States of Heightlandia, the height measurements of ten-year-old children…

A: given data, μ=56σ=3we have to find out the given probabilities.