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Understanding Normal Distributions: Z-Scores The heights of
Understanding Normal Distributions: Z-ScoresThe heights of adult men in America are normally distributed with a mean of 69.2 inches and a standard deviation of 2.61 inches. The heights of adult women … read more
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Business Weekly conducted a survey of graduates from 30 top
Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the survey, assume the mean annual salary for graduates 10 years after graduation is 189000 dollars. Assume th… read more
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A soft drink company has recently received customer
A soft drink company has recently received customer complaints about its one-liter-sized soft drink products. Customers have been claiming that the one-liter-sized products contain less than one liter… read more
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Probability and Statistic math question The heights of the
Probability and Statistic math question The heights of the aliens if the planet Mars are normally distributed with a mean of 40 inches and a standard deviation of 5 inches. They are vertically diverse… read more
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Probability and Statistic math question The heights of the
Probability and Statistic math question The heights of the aliens if the planet Mars are normally distributed with a mean of 40 inches and a standard deviation of 5 inches. They are vertically diverse… read more
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A soft drink company has recently received customer
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1. Find the indicated z score. The graph depicts the
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ATTENTION RYAN:STASTIC HOMEWORK1. The amount of Jen's
Attachment: 2015-05-12_195353_exam_4_stastic.docx ATTENTION RYAN: STASTIC HOMEWORK 1. The amount of Jen's monthly electric bill is normally distributed with a mean of $160 and a standard deviation of … read more
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Question 1 of 20 5.0 Points The lifetimes of light bulbs of
Question 1 of 20 5.0 Points The lifetimes of light bulbs of a particular type are normally distributed with a mean of 270 hours and a standard deviation of 11 hours. What percentage of the bulbs has l… read more
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1.According to a CBS News poll conducted in January 2009, 52%
1.According to a CBS News poll conducted in January 2009, 52% of adults nationwide do not think that the use of marijuana should be made legal. In a random sample of 20 adults, what is the mean number… read more
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(3) An analyst processes one item every 30 minutes, so 16 items
(3) An analyst processes one item every 30 minutes, so 16 items are completed in her first day of work. Her manager checks her work by randomly selecting an hour of the day, then reviewing all the ite… read more
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I. a. What percentage of the area of the standard normal distribution
I. a. What percentage of the area of the standard normal distribution is between z = -2.00 and z = +2.00? How do you know this? b. Find the following: P(z > 2.43) II. 1. A set of 50 data values has… read more
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Another question? 1)A soft drinking filling machine is set
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1)Assume that the variable under th consideration has a density
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My scenario: A researcher is interested in the height, weight,
My scenario: A researcher is interested in the height, weight, and TV-watching habits of 10 year old children. Suppose that the weights of all 10 year olds in the United States are normally distribute… read more
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The distribution of heights of young men is approximately Normal
The distribution of heights of young men is approximately Normal with mean 70 inches and standard deviation 2.5 inches. Use 68-95-99.7 rule to answer the following questions. a. what % of men are tall… read more
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the heights of young women are approximately Normal with 65
the heights of young women are approximately Normal with 65 inches and standard deviation 2.5 inches. The heights of men in the same age group have mean 70 inches standard deviation 2.5 inches. What p… read more
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Hi Greg, I have another assignment if you want it. Please
Hi Greg, I have another assignment if you want it. Please show the work. It's more intro statistics stuff. 1. A set of 50 data values has a mean of 30 and a variance of 4. I. Find the standard score (… read more
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