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[DOC File]Math 224 – Elementary Statistics
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The amount of TV the average person watches per day has a normal distribution with a mean of 4.7 hours and a standard deviation of 1.3. Use MINITAB to calculate all of the probabilities asked for in questions 1 and 3. To calculate probabilities in the software, pull up . Calc > Probability Distributions > Normal
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[DOC File]Name:__________________________________
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Feb 02, 2013 · Some IQ tests are standardized to a Normal model with a mean of 100 and a standard deviation of 16. What score would begin the interval for the top 16% of all scores? Use the Empircal Rule (68/95/99.7%) to find your answer. Validate this answer using the z-scores table. Empirical Rule: 1 SD above…116. Z-scores: 113.42 (table), 115.91 (calc)
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[DOC File]Lab on Normal distribution using Minitab
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For example if you want to create a fictional data set of cholesterol levels of 1000 adult American women assuming the mean is 188 and the standard deviation 24 proceed as follows: Create a new worksheet with . FILE>New. and selecting the option worksheet. CALC> Random data>normal. and input the necessary information
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[DOC File]Stat 321 – Lecture
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(i) Use Table A.3 to calculate the proportion of the standard normal distribution that lies below z=-1.90. Compare to the observed proportion. (j) Assuming the college entrance exam scores follow a normal distribution with mean =51.1 and standard deviation =19.29. Calculate the probability a randomly selected student scores above 70%.
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[DOC File]Unit 16 – Statistics
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Standard Deviation. HW 2. 3 Histograms and . Measures of Position . z-scores. HW 3 4 The Normal Distribution & The Empirical Rule. HW 4 5 The Normal Distribution (Normal Calculations) HW 5 6 Review Review Packet 7 Unit 16 Test Revised 4/15/14. Geo H Unit 16 – Day 1; Measures of Center and Boxplots (Label the axis with names and numbers.)
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[DOC File]Chapter 1 Notes
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The y-coordinate (height) specified in terms of the mean and the standard deviation of the distribution. Normal Probability Density. For all x. Note: e is the mathematical constant, 2.718282 Standard Normal Distribution. The normal distribution with =0 and =1 is called the standard normal…
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[DOC File]Z-Score Practice Worksheet
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A normal distribution of scores has a standard deviation of 10. Find the z-scores corresponding to each of the following values: A score that is 20 points above the mean. z=2. A score that is 10 points below the mean. z=-1. A score that is 15 points above the …
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[DOC File]National Chengchi University
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If we use the normal distribution to approximate probabilities for this, we would use a standard deviation of _____. M A. 16. Calc B. 3.2. C. 1.79. D. 0.16. B 90. Let X be a binomial random variable with n=20 and p=.8. If we use the normal distribution to approximate probabilities for this, a correction for continuity should be made.
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[DOC File]Probabilities for the Normal Distribution with the TI-83
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Calculating Probabilities for the Normal Distribution 2. Using ShadeNorm 2. A Program to Set the Window for ShadeNorm Error! Bookmark not defined. ... CALC, 1: 1-Var Stats, L1, Enter. ... sn-1 Sample standard deviation unbiased estimator of the population standard deviation (IB name) (x σ, sn Population standard deviation Sample standard ...
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Normal distribution standard deviation calc