The average math score for the class 5 is 23.6. A researcher is interested to check if the score is higher in class 5 that in USA. How many students are needed to ensure that a two-sided test of hypothesis has 80% power to detect a difference in score of 2 marks? If the population standard deviation is 5.7.
The average math score for the class 5 is 23.6. A researcher is interested to check if the score is higher in class 5 that in USA. How many students are needed to ensure that a two-sided test of hypothesis has 80% power to detect a difference in score of 2 marks? If the population standard deviation is 5.7.
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 average math score for the class 5 is 23.6. A researcher is interested to check if the
score is higher in class 5 that in USA. How many students are needed to ensure that a
two-sided test of hypothesis has 80% power to detect a difference in score of 2 marks? If
the population standard deviation is 5.7. I](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F223e03ac-23f8-47d5-afb1-75f70a644f9d%2F09eb77b3-2aef-4fb2-b891-d2f974bfe955%2F2zih3km_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The average math score for the class 5 is 23.6. A researcher is interested to check if the
score is higher in class 5 that in USA. How many students are needed to ensure that a
two-sided test of hypothesis has 80% power to detect a difference in score of 2 marks? If
the population standard deviation is 5.7. I
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