Use a normal-scores plot to see if the data are approximately normally distributed. 12, 14, 18,...
Use a normal-scores plot to see if the data are approximately normally distributed.
12, 14, 18, 22, 25, 29, 31
The data ________ (does, does not) appear to be approximately normally distributed because the normal-scores plot ___________ (is, is not) roughly linear.
Homework Answers
Using a normal-scores plot to see the data are approximately normally distributed.
12, 14, 18, 22, 25, 29, 31
The data does appear to be approximately normally distributed because the normal-scores plot is roughly linear
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Use a normal-scores plot to see if the data are approximately
normally distributed.
12, 14, 18,...
1. Use a normal-scores plot to see if the data are approximately normally distributed. 12, 14,...
1. Use a normal-scores plot to see if the data are approximately normally distributed. 12, 14, 18, 22, 25, 29, 31 OSOS vom The data (does, does not) appear to be om approximately normally distributed because the normal-scores plot (is, is not) roughly linear. 00:8: Yhtiguo nova 10 wooo we TUOVODOV wortelsluoliso s dlw 10 vilainement oy woda bris ned on answers tuovuq swansen SO Biolo soupil at voir un bns, anoitesup to soup yol slogtoo nicolliwo ob od toliau...
1. Use a normal-scores plot to see if the data are approximately normally distributed. 12, 14,...
1. Use a normal-scores plot to see if the data are approximately normally distributed. 12, 14, 18, 22, 25, 29, 31 The data (does, does not) appear to be approximately normally distributed because the normal-scores plot (is, is not) roughly linear. 2. Random variable X and Y have a bivariate normal distribution. The conditional density of X given Y = y is a a. bivariate normal distribution b. chi-square distribution c. linear distribution d) normal distribution e. not necessarily any...
4. Use the distribution function technique to find the density function for Y = 2X +...
4. Use the distribution function technique to find the density function for Y = 2X + 3 The density function for X is f(x). Your answer should be given as a piecewise function. 2x + 1) 1<x<2 f(x) = 4 0 elsewhere =f2x+1) h 5. Use the transformation technique to find the density function for Y = 4x + 1. The density function for X is f(x). Your answer should be a piecewise function. f(x) = S4e-4x 0 < x...
1. Scores on an IQ test for the 18-to-30 age group are approximately normally distributed with...
1. Scores on an IQ test for the 18-to-30 age group are approximately normally distributed with a mean of 110 and a standard deviation 25. Scores for the 31-to-40 age group are approximately normally distributed with mean 100 and standard deviation 20. Phoebe, who is 25, scores 130 on the test. Amandeep, who is 36, also takes the test and scores 116. Who scored higher relative to her age group, Phoebe or Amandeep? a) Phoebe b) Amandeep c) They scored...
On a test of physical fitness, 18-year-olds' scores are normally distributed with a mean of 140...
On a test of physical fitness, 18-year-olds' scores are normally distributed with a mean of 140 and a standard deviation of 25. Approximately what percentage of 18-year-olds have scores above 190? Below 165? Below 115? Use the normal curve approximation rules.
ACT scores are not exactly normally distributed but the normal distribution is very close match to...
ACT scores are not exactly normally distributed but the normal distribution is very close match to the histogram of ACT scores. How does this fact impact our ability to calculate probabilities about the average of 30 students ACT scores? A. because ACT scores cannot exceed 36, we cannot use probabilities from the normal curve, which extends out to infinity. B. because the sample size is relatively larger, we can only calculate probabilities for sums, not averages. C. we need samples...
Based on historical data, daily demand of a product is normally distributed with a mean of...
Based on historical data, daily demand of a product is normally
distributed with a mean of 200 and standard deviation of 50.
Develop a spreadsheet simulation model by simulating 300
observations of demand. After simulation freeze the simulated
demand values. Use Analysis ToolPak ? Histogram create a histogram
visualizing the demand distribution using bins: 100, 125, 150,
175,...,300. Use Analysis ToolPak ? Descriptive Statistics to
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Interpret skewness of the simulated demand....
It is reported that the ACT scores of freshman students at NMSU is approximately Normally distributed,...
It is reported that the ACT scores of freshman students at NMSU is approximately Normally distributed, with mean of 20.5 and standard deviation of 5.1. (1) (3pts) If the university decides to offer a scholarship to the top 2% of students, how high does a student need to score on ACT test to qualify for that scholarship? (No points will be given without proper steps) (2) (3pts) A math class has 20 freshmen enrolled. If we assume the 20 freshmen...
Suppose IQ scores are normally distributed with mean 100 and standard deviation 10. Which of the...
Suppose IQ scores are normally distributed with mean 100 and standard deviation 10. Which of the following is false? Group of answer choices A normal probability plot of IQ scores of a random sample of 1,000 people should show a straight line. Roughly 68% of people have IQ scores between 90 and 110. An IQ score of 80 is more unusual than an IQ score of 120. An IQ score greater than 130 is highly unlikely, but not impossible.
Intelligence scores are distributed approximately normally with μ = 100 and σ = 15. In each...
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1. Use a normal-scores plot to see if the data are approximately normally distributed. 12, 14, 18, 22, 25, 29, 31 OSOS vom The data (does, does not) appear to be om approximately normally distributed because the normal-scores plot (is, is not) roughly linear. 00:8: Yhtiguo nova 10 wooo we TUOVODOV wortelsluoliso s dlw 10 vilainement oy woda bris ned on answers tuovuq swansen SO Biolo soupil at voir un bns, anoitesup to soup yol slogtoo nicolliwo ob od toliau...
1. Use a normal-scores plot to see if the data are approximately normally distributed. 12, 14, 18, 22, 25, 29, 31 The data (does, does not) appear to be approximately normally distributed because the normal-scores plot (is, is not) roughly linear. 2. Random variable X and Y have a bivariate normal distribution. The conditional density of X given Y = y is a a. bivariate normal distribution b. chi-square distribution c. linear distribution d) normal distribution e. not necessarily any...
4. Use the distribution function technique to find the density function for Y = 2X + 3 The density function for X is f(x). Your answer should be given as a piecewise function. 2x + 1) 1<x<2 f(x) = 4 0 elsewhere =f2x+1) h 5. Use the transformation technique to find the density function for Y = 4x + 1. The density function for X is f(x). Your answer should be a piecewise function. f(x) = S4e-4x 0 < x...
Based on historical data, daily demand of a product is normally
distributed with a mean of 200 and standard deviation of 50.
Develop a spreadsheet simulation model by simulating 300
observations of demand. After simulation freeze the simulated
demand values. Use Analysis ToolPak ? Histogram create a histogram
visualizing the demand distribution using bins: 100, 125, 150,
175,...,300. Use Analysis ToolPak ? Descriptive Statistics to
compute the descriptive statistics metrics of the simulated values.
Interpret skewness of the simulated demand....
It is reported that the ACT scores of freshman students at NMSU is approximately Normally distributed, with mean of 20.5 and standard deviation of 5.1. (1) (3pts) If the university decides to offer a scholarship to the top 2% of students, how high does a student need to score on ACT test to qualify for that scholarship? (No points will be given without proper steps) (2) (3pts) A math class has 20 freshmen enrolled. If we assume the 20 freshmen...
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