The amount of coffee dispensed by a vending machine is assumed to be normally distributed. A vendor claims that the mean amount of coffee dispensed by the machine is 6 ounces per cup. The office manager doubted this claim. He randomly selected thirty-six cups of coffee from this machine and recorded the amount of coffee dispensed in each. The sample mean was 5.8 ounces with a standard deviation of 0.8 ounces. Do the data provide sufficient evidence to indicate that the mean amount of coffee dispensed is less than 6 ounces per cup? Test the hypothesis at α=0.05. Using the table Find the Critical value. A. +1.645 B.
The amount of coffee dispensed by a vending machine is assumed to be normally distributed. A vendor claims that the mean amount of coffee dispensed by the machine is 6 ounces per cup. The office manager doubted this claim. He randomly selected thirty-six cups of coffee from this machine and recorded the amount of coffee dispensed in each. The sample mean was 5.8 ounces with a standard deviation of 0.8 ounces. Do the data provide sufficient evidence to indicate that the mean amount of coffee dispensed is less than 6 ounces per cup? Test the hypothesis at α=0.05. Using the table Find the Critical value. A. +1.645 B.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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The amount of coffee dispensed by a vending machine is assumed to be
Using the table Find the Critical value.
A.
+1.645
B.
±1.96
C.
-1.645
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