In preparation for upcoming wage negotiations with the union, the managers for the Bevel Hardware Company want to establish the time required to assemble a kitchen cabinet. A first line supervisor believes that the job should take 40 minutes on average to complete. A random sample of 22 cabinets has an average assembly time of 47 minutes with a population standard deviation of 13 minutes. Is there overwhelming evidence to contradict the first line supervisor's belief at a 0.10 significance level? Assume the population of assembly times is approximately normally distributed. Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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In preparation for upcoming wage negotiations with the union, the managers for the Bevel Hardware Company want to establish the time required to assemble a kitchen cabinet. A first line supervisor believes that the job should take 40 minutes on average to complete. A random sample of 22 cabinets has an average assembly time of 47 minutes with a population standard deviation of 13 minutes. Is there overwhelming evidence to contradict the first line supervisor’s belief at a 0.10 significance level? Assume the population of assembly times is approximately normally distributed.
 
Step 2 of 3 :  
Compute the value of the test statistic. Round your answer to two decimal places.
In preparation for upcoming wage negotiations with the union, the managers for the Bevel Hardware
Company want to establish the time required to assemble a kitchen cabinet. A first line supervisor
believes that the job should take 40 minutes on average to complete. A random sample of 22 cabinets
has an average assembly time of 47 minutes with a population standard deviation of 13 minutes. Is there
overwhelming evidence to contradict the first line supervisor's belief at a 0.10 significance level? Assume
the population of assembly times is approximately normally distributed.
Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places.
Transcribed Image Text:In preparation for upcoming wage negotiations with the union, the managers for the Bevel Hardware Company want to establish the time required to assemble a kitchen cabinet. A first line supervisor believes that the job should take 40 minutes on average to complete. A random sample of 22 cabinets has an average assembly time of 47 minutes with a population standard deviation of 13 minutes. Is there overwhelming evidence to contradict the first line supervisor's belief at a 0.10 significance level? Assume the population of assembly times is approximately normally distributed. Step 2 of 3: Compute the value of the test statistic. Round your answer to two decimal places.
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