Suppose a locally owned coffee shop had an average daily revenue of $4,191 before some ordinance was passed that seemed to drive business down. To test their hypothesis that the ordinance has adversely impacted their sales, the owner examines the sales over the 30 days since the ordinance was passed and finds a sample mean of $3,922 daily revenue with a sample standard deviation of $750. Does the evidence suggest that the ordinance has adversely impacted the coffee shop sales? Use a = 0.05.
Suppose a locally owned coffee shop had an average daily revenue of $4,191 before some ordinance was passed that seemed to drive business down. To test their hypothesis that the ordinance has adversely impacted their sales, the owner examines the sales over the 30 days since the ordinance was passed and finds a sample mean of $3,922 daily revenue with a sample standard deviation of $750. Does the evidence suggest that the ordinance has adversely impacted the coffee shop sales? Use a = 0.05.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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