What does standard deviation of 1 mean

    • [DOC File]1

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      If the standard deviation stays the same, what new lower mean time does the company need to achieve? Months later, another post-purchase survey shows that new instructions and part labeling did lower the mean assembly time, but only to 50 minutes. Nonetheless, the company did achieve the 60%-in-an-hour goal too. How was that possible?

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    • [DOC File]Standard Deviation/Standard Score Correspondence

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      Standard Deviation/Standard/Scaled Score Correspondence Standard Deviation (SD) Standard Score Scaled Score 2 SD above mean 130 or above 16 or above 1 SD above mean Between 115 and 130 Between 13 and 16 Within 1 SD of mean Between 85 and 115 Between 7 and 13 1 SD below mean Between 70 and 85 Between 4 and 7 1.5 SD below mean 77.5 5.5 2 SD below ...

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    • [DOC File]06 Boyle's Law

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      1. Standard Deviation When you obtained the statistics for your histogram, you may have noticed that, in addition to minimum and maximum values, and the mean and median, the standard deviation (std. dev.) was also provided. Do a web search for standard deviation.

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    • [DOC File]The Practice of Statistics - AP STATISTICS - AP Statistics

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      1. What are the mean and standard deviation of the sampling distribution of the sample mean ? Describe the conditions for these formulas. Explain how the behavior of the sample mean and standard deviation are similar to the sample proportion. The mean and standard deviation of a …

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    • [DOC File]Commonly Used @Risk Functions

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      (mean,standard deviation) lognormal distribution with specified mean and standard deviation RiskNegbin (s,p) negative binomial distribution with s successes and p probability of success on each trial * RiskNormal (mean,standard deviation) normal distribution with given mean and standard deviation RiskPareto (theta,a) pareto distribution * RiskPert

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    • [DOC File]Eight Practice Problems -- Normal Distribution

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      1. Replacement times for CD players are normally distributed with a mean of 7.1 years and a standard deviation of 1.4 years (data from Consumer Reports). What is the probability that a randomly-selected CD player will have to be replaced in 8 years or less? 2.

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    • [DOC File]Standard deviation - 物理系

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      Therefore, the standard deviation is 2. In this case 100% of the values in the population are at one standard deviation of the mean. The standard deviation is the most common measure of statistical dispersion, measuring how widely spread the values in a data set are. If the data points are close to the mean, then the standard deviation is small.

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    • [DOC File]The Practice of Statistics

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      What does standard deviation measure? What is the relationship between variance and standard deviation? When does standard deviation equal zero? Is standard deviation resistant or nonresistant to extreme observations? Explain. The Practice of Statistics - Yates, Moore, & McCabe Chapter 1…

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    • CHAPTER 1

      (f) 6 Two measures of the risk premium are the standard deviation and the variance. (f) 7 The variance of expected returns is equal to the square root of the expected returns. (f) 8 The coefficient of variation is the expected return divided by the standard deviation of the expected return. (f) 9 Nominal rates are averages of all possible real ...

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