4. An inspector wants to test if the Coke-litro-filling machine is defective by getting a random sample of 22 Coke litro from different batches filled by the machine. It is found out that the sample mean of the random sample is about 1.09 liters with a sample standard deviation of 0.15 liters. Which among the values is the critical regions applicable for the test? Use 0.01 level of significance.  a. t > -2.831 and t < 2.831  b. t < -1.96 and t > 1.96  c. t < - 2.831 and t > 2.831  d. t > -1.96 and t < 1.96

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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4. An inspector wants to test if the Coke-litro-filling machine is defective by getting a random sample of 22 Coke litro from different batches filled by the machine. It is found out that the sample mean of the random sample is about 1.09 liters with a sample standard deviation of 0.15 liters. Which among the values is the critical regions applicable for the test? Use 0.01 level of significance.
 a. t > -2.831 and t < 2.831
 b. t < -1.96 and t > 1.96
 c. t < - 2.831 and t > 2.831
 d. t > -1.96 and t < 1.96

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