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Name: A sample of 9 female college students consumes an average of 9 liters
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Description: A sample of 9 female college students consumes an average of 9 liters of alcohol per month, with a sample standard deviation of 3.3 liters. You can safely assume that the population of monthly alcohol consumption is Normally distributed. What is the

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter13: Probability And Calculus

Section13.2: Expected Value And Variance Of Continuous Random Variables

Problem 10E

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A sample of 9 female college students consumes an average of 9 liters of alcohol per month, with a sample standard deviation of 3.3 liters. You can safely assume that the population of monthly alcohol consumption is Normally distributed. What is the margin of error for a 99% Confidence Interval for the mean? (Leave your answer to two decimal places, ex: 18.12)

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.

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