McPhilly is conducting a study on the amount of money a customer spends on each visit to the restaurant. The company looks at the receipts from 20 McPhilly restaurants. The company found that the mean amount spent is $11 with a $3 standard deviation. *You need a z-score chart for this question, see announcements for a link to it. a. What type of sampling method was used? b. What is the probability that a customer spend greater than $8 each visit? c. What is the probability that a customer spends less than $13 each visit? d. The customers were asked to respond to the following survey question, determine if the question is biased. Explain why or why not? "What menu item gives you the best value?
McPhilly is conducting a study on the amount of money a customer spends on each visit to the restaurant. The company looks at the receipts from 20 McPhilly restaurants. The company found that the mean amount spent is $11 with a $3 standard deviation. *You need a z-score chart for this question, see announcements for a link to it. a. What type of sampling method was used? b. What is the probability that a customer spend greater than $8 each visit? c. What is the probability that a customer spends less than $13 each visit? d. The customers were asked to respond to the following survey question, determine if the question is biased. Explain why or why not? "What menu item gives you the best value?
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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Transcribed Image Text:McPhilly is conducting a study on the amount of money a customer spends on each
visit to the restaurant. The company looks at the receipts from 20 McPhilly
restaurants. The company found that the mean amount spent is $11 with a $3
standard deviation.
*You need a z-score chart for this question, see announcements for a link to it.
a. What type of sampling method was used?
b. What is the probability that a customer spend greater than $8 each visit?
c. What is the probability that a customer spends less than $13 each visit?
d. The customers were asked to respond to the following survey question, determine
if the question is biased. Explain why or why not?
"What menu item gives you the best value?
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