For each of the following, identify the exam score that should lead to the better grade. In each case, explain your answer. a. A score of X = 74 on an exam with M = 82 and σ = 8; or a score of X = 40 on an exam with μ = 50 and σ = 20. b. A score of X = 51 on an exam with μ = 45 and σ = 2: or a score of X = 90 on an exam with μ = 70 and σ = 20. c. A score of X - 62 on an exam with μ = 50 and σ = 8; or a score of X = 23 on an exam with μ = 20 and σ = 2.

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Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781133956570
BuyFind

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781133956570

Solutions

Chapter
Section
Chapter 5, Problem 22P
Textbook Problem

For each of the following, identify the exam score that should lead to the better grade. In each case, explain your answer.

  1. a. A score of X = 74 on an exam with M = 82 and σ = 8; or a score of X = 40 on an exam with μ = 50 and σ = 20.
  2. b. A score of X = 51 on an exam with μ = 45 and σ = 2: or a score of X = 90 on an exam with μ = 70 and σ = 20.
  3. c. A score of X - 62 on an exam with μ = 50 and σ = 8; or a score of X = 23 on an exam with μ = 20 and σ = 2.

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Chapter 5 Solutions

Essentials of Statistics for the Behavioral Sciences
Ch. 5.3 - A distribution of English exam scores has = 70...Ch. 5.3 - A distribution of English exam scores has = 50...Ch. 5.4 - A population of scores has = 73 and = 8. If the...Ch. 5.4 - A population with a mean of = 44 and a standard...Ch. 5.6 - For a sample with a mean of M = 40 and a standard...Ch. 5.6 - For a sample with a mean of M = 80 and a standard...Ch. 5.6 - For a sample with a mean of M = 85, a score of X =...Ch. 5.6 - For a sample with a standard deviation of s = 12,...Ch. 5.6 - A sample has a mean of M = 30 and a standard...Ch. 5 - What information is provided by the sign (+/) of a...Ch. 5 - A distribution has a standard deviation of = 10....Ch. 5 - For a distribution with a standard deviation of =...Ch. 5 - For a population with = 80 and = 10, a.Find the...Ch. 5 - For a population with = 40 and a = 11, find the...Ch. 5 - For a population with a mean of = 100 and a...Ch. 5 - A population has a mean of = 60 and a deviation...Ch. 5 - A sample has a mean of M = 30 and a standard...Ch. 5 - A sample has a mean of M = 25 and a standard...Ch. 5 - Find the z-score corresponding to a score of X =...Ch. 5 - Find the X value corresponding to z = 0.25 for...Ch. 5 - A score that is 6 points below the mean...Ch. 5 - A score that is 9 points above the mean...Ch. 5 - For a population with a standard deviation of =...Ch. 5 - For a sample with a standard deviation of s = 8, a...Ch. 5 - For a sample with a mean of M = 51, a score of X =...Ch. 5 - For a population with a mean of = 70, a score X =...Ch. 5 - In a population distribution, a score of X = 28...Ch. 5 - In a sample distribution, X = 56 corresponds to z...Ch. 5 - For each of the following populations, would a...Ch. 5 - A distribution of exam scores has a mean of = 78....Ch. 5 - For each of the following, identify the exam score...Ch. 5 - A distribution with a mean of = 38 and a standard...Ch. 5 - A distribution with a mean of = 76 and a standard...Ch. 5 - A population consists of the following N = 5...Ch. 5 - A sample consists of the following n = 7 scores:...

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