The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a standard deviation of 5.5 ounces. 34 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( b. What is the distribution of ¤? ¤ - N( c. What is the probability that one randomly selected person drinks between 15.7 and 16.2 ounces of coffee per day? d. For the 34 people, find the probability that the average coffee consumption is between 15.7 and 16.2 ounces of coffee per day. e. For part d), is the assumption that the distribution is normal necessary? O NoO Yes f. Find the IQR for the average of 34 coffee drinkers. Q1 = ounces Q3 = ounces IQR: ounces
The amount of coffee that people drink per day is normally distributed with a mean of 16 ounces and a standard deviation of 5.5 ounces. 34 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N( b. What is the distribution of ¤? ¤ - N( c. What is the probability that one randomly selected person drinks between 15.7 and 16.2 ounces of coffee per day? d. For the 34 people, find the probability that the average coffee consumption is between 15.7 and 16.2 ounces of coffee per day. e. For part d), is the assumption that the distribution is normal necessary? O NoO Yes f. Find the IQR for the average of 34 coffee drinkers. Q1 = ounces Q3 = ounces IQR: ounces
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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