The store manager took a random sample of 100 customers to determine whether or not the mean waiting time of all customers was significantly more than 3 minutes. He observes that the average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minutes. What is the appropriate test to use for this problem? A. One sample z-test B. One sample t-test C. Two sample z-test D. Two sample t-test What is the observed value of the test statistic? A. 2.00 B. 1.64 C. 1.96 D. 0.056 What is the corresponding p-value? A. 0.025 B. 0.0456 C. 0.0228 D. 0.05
The store manager took a random sample of 100 customers to determine whether or not the mean waiting time of all customers was significantly more than 3 minutes. He observes that the average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minutes. What is the appropriate test to use for this problem? A. One sample z-test B. One sample t-test C. Two sample z-test D. Two sample t-test What is the observed value of the test statistic? A. 2.00 B. 1.64 C. 1.96 D. 0.056 What is the corresponding p-value? A. 0.025 B. 0.0456 C. 0.0228 D. 0.05
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 store manager took a random sample of 100 customers to determine whether or not the mean waiting time of all customers was significantly more than 3 minutes. He observes that the average length of time it took the customers in the sample to check out was 3.1 minutes. The population standard deviation is known to be 0.5 minutes.
What is the appropriate test to use for this problem?
A. One sample z-test
B. One sample t-test
C. Two sample z-test
D. Two sample t-test
What is the observed value of the test statistic?
A. 2.00
B. 1.64
C. 1.96
D. 0.056
What is the corresponding p-value?
A. 0.025
B. 0.0456
C. 0.0228
D. 0.05
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