Twenty-one students took a management course examination. The sample variance is found to be 80. The teacher claims that based on his past experience the true variance has been at least 100. Does the sample result show that the population variance significantly less than 100?
A. The variability is not significant
B. Significant with +1
C. The variability is significant
D. All of the above
Answer: Option A
This Question Belongs to Management >> Business Statistics
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