The mean life time of a electric bulb produced is 1200 hours. A new batch of sample 200 bulbs were tested and it shows a mean life time of 1175 hours. Assuming the life time of electric bulbs are normally distributed with standard deviation of 120 hours... Find (Using the significance level of 5%) 3) Ho accepted TRUE OR FALSE?
The mean life time of a electric bulb produced is 1200 hours. A new batch of sample 200 bulbs were tested and it shows a mean life time of 1175 hours. Assuming the life time of electric bulbs are normally distributed with standard deviation of 120 hours... Find (Using the significance level of 5%) 3) Ho accepted TRUE OR FALSE?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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![The mean life time of a electric bulb produced is 1200 hours. A new batch
of sample 200 bulbs were tested and it shows a mean life time of 1175
hours. Assuming the life time of electric bulbs are normally distributed with
standard deviation of 120 hours...
Find
(Using the significance level of 5%)
3) Ho accepted TRUE OR FALSE?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F48875997-7ea7-4103-bede-7cda158caf9a%2Fb58cd7c2-5df4-46bf-adbf-b8e30bf4ab65%2Fsilxc1n_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The mean life time of a electric bulb produced is 1200 hours. A new batch
of sample 200 bulbs were tested and it shows a mean life time of 1175
hours. Assuming the life time of electric bulbs are normally distributed with
standard deviation of 120 hours...
Find
(Using the significance level of 5%)
3) Ho accepted TRUE OR FALSE?
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