A course work of a student is dedicated to the investigation of sleep. To begin with, it is important to establish whether there is a difference in the average duration of sleep for people of different age groups. For this purpose the student considers several random samples to study four age groups. Carry out an ANOVA test and find the F and P values.
A) ,
,
, and P-value is between 0.05 and 0.10.
B) ,
,
, and P-value is between 0.025 and 0.05.
C) ,
,
, and P-value is less than 0.01.
D) ,
,
, and P-value is less than 0.01.
Correct Answer:
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