Explanation Given info: The random variable X represents the test score for membership in organization and it follows the normal distribution with mean of 115 and standard deviation of 12. Membership in an elite organization requires a test score in the upper 30% range . Calculation: The formula for specific data value is, X = μ + z σ By using the EXCEL function ( N O R M S I N V ( p r o b a b i l i t y ) ) , the area right of z = 0

ELEMENTARY STATS: STEP BY STEP - CONNECT

10th Edition

ISBN: 9781265626181

Author: Bluman

Publisher: MCG

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A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

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Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

Chapter 6, Problem 26CQ

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To find: The lowest acceptable score that would enable a candidate to apply for membership.

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Chapter 6, Problem 25CQ

Chapter 6, Problem 27CQ

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Chapter 6 Solutions

ELEMENTARY STATS: STEP BY STEP - CONNECT

Ch. 6.1 - Many times in statistics it is necessary to see if...Ch. 6.1 - What are the characteristics of an normal...Ch. 6.1 - Why is the standard normal distribution important...Ch. 6.1 - What is the total area under the standard normal...Ch. 6.1 - What percentage of the area falls below the mean?...Ch. 6.1 - About what percentage of the area under the normal...Ch. 6.1 - What are two other names for a normal...Ch. 6.1 - For Exercises 7 through 26, find the area under...Ch. 6.1 - For Exercises 7 through 26, find the area under...Ch. 6.1 - For Exercises 7 through 26, find the area under...

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The lowest acceptable score that would enable a candidate to apply for membership.

Solution Summary: The author explains that the lowest acceptable score that would enable a candidate to apply for membership is 121.24.

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