The average amount of money that people spend at Don Mcalds fast food place is $7.2700 with a standard deviation of $1.7900. 8 customers are randomly selected. Please answer the following questions, and round all answers to 4 decimal places where possible and assume a normal distribution. What is the distribution of XX? XX ~ N 7.27, 1.79 What is the distribution of ¯xx¯? ¯xx¯ ~ N 7.27, .6329 What is the distribution of ∑x∑x? ∑x∑x ~ N 58.16,5.0629 What is the probability that one randomly selected customer will spend more than $7.2007? For the 8 customers, find the probability that their average spent is less than $7.2007. Find the probability that the randomly selected 8 customers will spend less than $57.6056. For part e) and f), is the assumption of normal necessary? No or yes
The average amount of money that people spend at Don Mcalds fast food place is $7.2700 with a standard deviation of $1.7900. 8 customers are randomly selected. Please answer the following questions, and round all answers to 4 decimal places where possible and assume a normal distribution. What is the distribution of XX? XX ~ N 7.27, 1.79 What is the distribution of ¯xx¯? ¯xx¯ ~ N 7.27, .6329 What is the distribution of ∑x∑x? ∑x∑x ~ N 58.16,5.0629 What is the probability that one randomly selected customer will spend more than $7.2007? For the 8 customers, find the probability that their average spent is less than $7.2007. Find the probability that the randomly selected 8 customers will spend less than $57.6056. For part e) and f), is the assumption of normal necessary? No or yes
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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The average amount of money that people spend at Don Mcalds fast food place is $7.2700 with a standard deviation of $1.7900. 8 customers are randomly selected. Please answer the following questions, and round all answers to 4 decimal places where possible and assume a
- What is the distribution of XX? XX ~ N 7.27, 1.79
- What is the distribution of ¯xx¯? ¯xx¯ ~ N 7.27, .6329
- What is the distribution of ∑x∑x? ∑x∑x ~ N 58.16,5.0629
- What is the probability that one randomly selected customer will spend more than $7.2007?
- For the 8 customers, find the probability that their average spent is less than $7.2007.
- Find the probability that the randomly selected 8 customers will spend less than $57.6056.
- For part e) and f), is the assumption of normal necessary? No or yes
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