Basic Business Statistics, Student Value Edition

14th Edition

ISBN: 9780134685113

Author: Mark L. Berenson, David M. Levine, David F. Stephan, Kathryn Szabat

Publisher: PEARSON

See similar textbooks

Concept explainers

Inverse Normal Distribution

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…

Videos

Textbook Question

Chapter 6, Problem 10PS

A Set of final examination grades in an introductory statistics course is normally distributed, with of 73 and a standard deviation of 8.

a. What is the probability that a student scored below 91 on this exam?

b. What is the probability that a student scored between 65 and 89?

c. The probability is 5 percent that a student taking the test scores higher than what grade?

d. if the professor grades on a curve (i.e., gives As to the top ten percent of the class, regardless of the score), are you better off with a grade of 81 on this exam on a grade of 68 on a different exam, where the mean is 62 and the standard deviation is 3? Show your answer statistically and explain.

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.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 6, Problem 9PS

Chapter 6, Problem 11PS

Chapter 6 Solutions

Basic Business Statistics, Student Value Edition

Ch. 6 - Given a standardized normal distribution (with a...Ch. 6 - Given a standard normal distribution (with a mean...Ch. 6 - Given a standardized normal distribution (with a...Ch. 6 - Given a standardized normal distribution (with a...Ch. 6 - Given a normal distribution with =100 and =10,...Ch. 6 - Given a normal distribution with =50 and =4, what...Ch. 6 - In 2015, the per capita consumption of bottled...Ch. 6 - Tobyâ€™s Trucking Company determined that the...Ch. 6 - Millennials spent an average of $103 on monthly...Ch. 6 - A Set of final examination grades in an...

Ch. 6 - A Nielsen study indicates that 18-to 34-year olds...Ch. 6 - In 2015, the per capita consumption of soft drinks...Ch. 6 - Many manufacturing problems involve the matching...Ch. 6 - Show that for a sample of n=39, the smallest and...Ch. 6 - For a sample of n=6, list the six Z values.Ch. 6 - The annual NFL Super Bowl is the most widely...Ch. 6 - As player salaries have increased, the cost of...Ch. 6 - The file Property Taxes contains the property...Ch. 6 - Prob. 19PS Ch. 6 - One operation of a mill is to cut pieces of steel...Ch. 6 - The file CD Rate contains the yields for a...Ch. 6 - The file Utility contains the electricity costs,...Ch. 6 - Suppose you select one value from a uniform...Ch. 6 - The time between arrivals of customer at a bank...Ch. 6 - A study of the time spent shopping in a...Ch. 6 - Prob. 26PS Ch. 6 - The Scheduled commuting time on the Long Island...Ch. 6 - Prob. 28PS Ch. 6 - Prob. 29PS Ch. 6 - Prob. 30PS Ch. 6 - Prob. 31PS Ch. 6 - Prob. 32PS Ch. 6 - An industrial sewing machine uses ball bearing...Ch. 6 - The fill amount in 2-liter soft drink bottles is...Ch. 6 - In an effort to reduce the number of bottles that...Ch. 6 - Prob. 36PS Ch. 6 - The file DomesticBeer Contains the percentage...Ch. 6 - Prob. 38PS Ch. 6 - The major stock market indexes had strong results...Ch. 6 - Interns report that when deciding on where to...Ch. 6 - According to the same Glassdoor source mentioned...

Knowledge Booster

$Statistics$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Recommended textbooks for you

Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill

Glencoe Algebra 1, Student Edition, 9780079039897...

Algebra

ISBN:9780079039897

Author:Carter

Publisher:McGraw Hill

SEE MORE TEXTBOOKS

The Shape of Data: Distributions: Crash Course Statistics #7; Author: CrashCourse;https://www.youtube.com/watch?v=bPFNxD3Yg6U;License: Standard YouTube License, CC-BY

Shape, Center, and Spread - Module 20.2 (Part 1); Author: Mrmathblog;https://www.youtube.com/watch?v=COaid7O_Gag;License: Standard YouTube License, CC-BY

Shape, Center and Spread; Author: Emily Murdock;https://www.youtube.com/watch?v=_YyW0DSCzpM;License: Standard Youtube License

Solution Summary: The author determines the probability that a student scored below 91 on the introductory statistics exam. The required probability is 0.9878.

Concept explainers

Videos

Want to see the full answer?

Chapter 6 Solutions