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25-11-2022
Mathematics

Answered

A random sample of 49 statistics examinations was taken. The average score, in the sample, was 84 with a variance of 12.25. The 95% confidence interval for the average examination score of the population of the examinations is
76.00 to 84.00
77.40 to 86.60
83.00 to 85.00
68.00 to 100.00

Answer :

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