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[DOC File]16 - North Hunterdon-Voorhees Regional High School District
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On the Wechsler Adult Intelligence Scale (a standard IQ test) are approximately normally distributed within age groups. For the 20-34 age group, the Scores mean is 110 and the standard deviation is 25. For 60-64 age groups, the mean is 90 and the standard deviation …
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[DOC File]Statistics Review - Administration
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140.A sample of 13 high school teachers has a mean age of 30 years and a standard deviation of 5 years. Suppose that the sample is enlarged to 15 high school teachers, by including two additional teachers that are each 30 years old.
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[DOC File]1) A physical fitness association is including the mile ...
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has approximately the standard normal (z) distribution. Note: The Central Limit Theorem can safely be applied if n exceeds 30. Example 8.2 A patient visits her doctor with concerns about her blood pressure. If the systolic blood pressure exceeds 150, the patient is considered to have high blood pressure and medication may be prescribed.
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Suppose the average score on a national test is 500 with a standard deviation of 100. If each score is increased by 25, what are the new mean and standard deviation? In a certain southwestern city the air pollution index averages 62.5 during the year with a standard deviation of 18.0.
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Chapter 20
a. dividing standard deviation by expected value. b. calculating the percentage each asset’s value to the total portfolio value. c. calculating the return of each asset to total portfolio return. d. dividing expected value by the standard deviation. Ans: b. Difficulty: Moderate. Ref: Portfolio Return and Risk. 9.
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What standard deviation is considered high? - Quora
d. Standard deviation is the measure of risk which determines a portfolio's equilibrium return. (a, moderate) 20. The expected return on the market for next period is 16 percent. The risk free rate of return is 7 percent, and Alpha Company has a beta of 1.1. The market risk premium is. a. 9.9 percent. Answer: Market risk premium = 16 - 7. b. 9 ...
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Chapter 7
Estimate the mean and standard deviation. 5. Student Heights: The “Heights” data file on the text CD has heights for female and male students (in inches). For males, the mean is 70.9 and the standard deviation is 2.9. For females, the mean is 65.3 and the standard deviation is 3.0. a. Interpret the male heights using the Empirical Rule. b.
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[DOC File]Topic 15: - North Hunterdon-Voorhees Regional High School ...
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c) The standard deviation is better for describing skewed distributions. d) The standard deviation is in the same units as the original data. Questions 21-23 use the following information. Suppose you operate a diamond mine in South Africa. The daily production of diamonds is approximately normally distributed with a mean of 7,500 tons of ...
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[DOC File]Sample Test Questions -- Test 1 - University of Florida
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Comment on the following statement: “The standard deviation of a sampling distribution is 0.08. In order to cut the standard deviation in half, the sample size would need to be doubled.” A large high school has approximately 1200 seniors. The administration of the school claims that 87% of its graduates are accepted into colleges.
high vs low standard deviation

What is considered a high standard deviation