6th Edition

ISBN: 9780321922205

Author: Bennett

Publisher: PEARSON CO

Concept explainers

The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of tw…

Mean, Median, Mode

It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency o…

Z-Scores

A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow compar…

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Textbook Question

Chapter 6.A, Problem 19E

Outlier Coke. Cans of Coca-Cola vary slightly in weight. Here are the measured weights of seven cans, in pounds:

0.8161

0.8194

0.8165

0.8176

0.7901

0.8143

0.8126

Find the mean and median of these weights. Which, if any, of these weights would you consider to be an outlier? What are the mean and median weights if the outlier is excluded?

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Chapter 6.A, Problem 18E

Chapter 6.A, Problem 20E

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