Essentials of Statistics; MathXL Valuepack Access Card (6-months) (5th Edition)

5th Edition

ISBN: 9780133954982

Author: Mario F. Triola

Publisher: PEARSON

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative p…

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Textbook Question

Chapter 5.4, Problem 12BSC

Are 14% of M&M Candies Yellow? Mars, Inc. claims that 14% of its M&M plain candies are yellow, and a sample of 100 such candies is randomly selected.

a. Find the mean and standard deviation for the number of yellow candies in such groups of 100.
b. Data Set 20 in Appendix B consists of a random sample of 100 M&Ms, including 8 that are yellow. Is this result unusually low? Does it seem that the claimed rate of 14% is wrong?

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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Chapter 5.4, Problem 11BSC

Chapter 5.4, Problem 13BSC

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Chapter 5 Solutions

Essentials of Statistics; MathXL Valuepack Access Card (6-months) (5th Edition)

Ch. 5.2 - Random Variable Table 5-7 lists probabilities for...Ch. 5.2 - Discrete or Continuous? Is the random variable...Ch. 5.2 - Probability Distribution Does Table 5-7 describe a...Ch. 5.2 - Unusual For 200 births, the probability of exactly...Ch. 5.2 - Identifying Discrete and Continuous Random...Ch. 5.2 - Prob. 6BSC Ch. 5.2 - Identifying Probability Distributions. In...Ch. 5.2 - Identifying Probability Distributions. In...Ch. 5.2 - Identifying Probability Distributions. In...Ch. 5.2 - Identifying Probability Distributions. In...

Ch. 5.2 - Identifying Probability Distributions. In...Ch. 5.2 - Identifying Probability Distributions. In...Ch. 5.2 - Happiness In a survey sponsored by Coca-Cola,...Ch. 5.2 - Identifying Probability Distributions. In...Ch. 5.2 - Genetics. In Exercises 15-18, refer to the...Ch. 5.2 - Genetics. In Exercises 15-18, refer to the...Ch. 5.2 - Genetics. In Exercises 15-18, refer to the...Ch. 5.2 - Genetics. In Exercises 15-18, refer to the...Ch. 5.2 - Car Failures. In Exercises 19-22, refer to the...Ch. 5.2 - Car Failures. In Exercises 19-22, refer to the...Ch. 5.2 - Car Failures. In Exercises 19-22, refer to the...Ch. 5.2 - Prob. 22BSC Ch. 5.2 - Expected Value for the Texas Pick 3 Game In the...Ch. 5.2 - Expected Value in Maines Pick 4 Game In Maines...Ch. 5.2 - Prob. 25BB Ch. 5.2 - Expected Value for Deal or No Deal The television...Ch. 5.3 - Calculating Probabilities Based on a Saint Index...Ch. 5.3 - Consistent Notation If we use the binomial...Ch. 5.3 - Prob. 3BSC Ch. 5.3 - Notation of 0+ Using the same survey from Exercise...Ch. 5.3 - Identifying Binomial Distributions. In Exercises...Ch. 5.3 - Identifying Binomial Distributions. In Exercises...Ch. 5.3 - Veggie Survey In an Idaho Potato Commission survey...Ch. 5.3 - Veggie Survey In an Idaho Potato Commission survey...Ch. 5.3 - Surveying Senators The current Senate consists of...Ch. 5.3 - Identifying Binomial Distributions. In Exercises...Ch. 5.3 - Prob. 11BSC Ch. 5.3 - Prob. 12BSC Ch. 5.3 - Binomial Probability Formula. In Exercises 13 and...Ch. 5.3 - Prob. 14BSC Ch. 5.3 - Using the Binomial Probability Table. In Exercises...Ch. 5.3 - Prob. 16BSC Ch. 5.3 - Using the Binomial Probability Table. In Exercises...Ch. 5.3 - Prob. 18BSC Ch. 5.3 - Prob. 19BSC Ch. 5.3 - Using the Binomial Probability Table. In Exercises...Ch. 5.3 - Prob. 21BSC Ch. 5.3 - Prob. 22BSC Ch. 5.3 - Prob. 23BSC Ch. 5.3 - Prob. 24BSC Ch. 5.3 - Using Computer Results. In Exercises 2528, refer...Ch. 5.3 - Prob. 26BSC Ch. 5.3 - Prob. 27BSC Ch. 5.3 - Using Computer Results. In Exercises 2528, refer...Ch. 5.3 - See You Later Based on a Harris Interactive poll,...Ch. 5.3 - Live TV Based on a Comcast survey, there is a 0.8...Ch. 5.3 - Too Young to Tat Based on a Harris poll, among...Ch. 5.3 - Tainted Currency Based on the American Chemical...Ch. 5.3 - Prob. 33BSC Ch. 5.3 - Prob. 34BSC Ch. 5.3 - On-Time Flights The U.S. Department of...Ch. 5.3 - Prob. 36BSC Ch. 5.3 - Nielsen Rating CBS televised a recent Super Bowl...Ch. 5.3 - Overbooking Flights When someone buys a ticket for...Ch. 5.3 - XSORT Method of Gender Selection When testing a...Ch. 5.3 - Prob. 40BSC Ch. 5.3 - Prob. 41BSC Ch. 5.3 - Prob. 42BSC Ch. 5.3 - Acceptance Sampling. Exercises 35 and 36 involve...Ch. 5.3 - Prob. 44BSC Ch. 5.3 - Prob. 45BB Ch. 5.3 - Prob. 46BB Ch. 5.3 - Prob. 47BB Ch. 5.3 - Prob. 48BB Ch. 5.4 - Prob. 1BSC Ch. 5.4 - Prob. 2BSC Ch. 5.4 - Prob. 3BSC Ch. 5.4 - Prob. 4BSC Ch. 5.4 - Finding , , and Unusual Values. In Exercises 58,...Ch. 5.4 - Prob. 6BSC Ch. 5.4 - Prob. 7BSC Ch. 5.4 - Prob. 8BSC Ch. 5.4 - Prob. 9BSC Ch. 5.4 - Prob. 10BSC Ch. 5.4 - Are 20% of MM Candies Orange? Mars, Inc. claims...Ch. 5.4 - Are 14% of MM Candies Yellow? Mars, Inc. claims...Ch. 5.4 - Cell Phones and Brain Cancer In a study of 420,095...Ch. 5.4 - Prob. 14BSC Ch. 5.4 - Prob. 15BSC Ch. 5.4 - Prob. 16BSC Ch. 5.4 - Prob. 17BSC Ch. 5.4 - Prob. 18BSC Ch. 5.4 - Born on the 4th of July For the following...Ch. 5.4 - Prob. 20BSC Ch. 5.4 - Prob. 21BB Ch. 5.4 - Prob. 23BB Ch. 5 - Is a probability distribution defined if the only...Ch. 5 - There are 100 questions from an SAT test, and they...Ch. 5 - Using the same SAT questions described in Exercise...Ch. 5 - Prob. 4CQQ Ch. 5 - If boys and girls are equally likely, groups of400...Ch. 5 - In Exercises 610, use the following: Five American...Ch. 5 - x p(x) 0 0+ 1 0.006 2 0.051 3 0.205 4 0.409 5...Ch. 5 - In Exercises 610, use the following: Five American...Ch. 5 - In Exercises 610, use the following: Five American...Ch. 5 - In Exercises 610, use the following: Five American...Ch. 5 - In Exercises 14, assume that 40% of the population...Ch. 5 - Prob. 2RE Ch. 5 - Prob. 3RE Ch. 5 - Brown Eyes When randomly selecting 600 people, the...Ch. 5 - In Exercises 5 and 6, refer to the table in die...Ch. 5 - In Exercises 5 and 6, refer to the table in die...Ch. 5 - Prob. 7RE Ch. 5 - Prob. 8RE Ch. 5 - Expected Value for a Magazine Sweepstakes Readers...Ch. 5 - Prob. 10RE Ch. 5 - Please be aware that some of the following...Ch. 5 - Ohio Pick 4 In Ohios Pick 4 game, you pay 1 to...Ch. 5 - Tennis Challenge In the last U.S. Open tennis...Ch. 5 - Prob. 4CRE Ch. 5 - Random Digits The digits 0, 1, 2,3,4, 5,6,7, 8,...Ch. 5 - Prob. 6CRE Ch. 5 - FROM DATA TO DECISION Critical Thinking: Did...

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