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CUET
-- Mathematics - Section B2
Probability Distributions
Consider the following hypothesis test :
$H_o: \mu ≤ 30 $
$H_a: \mu > 30 $
A sample of 81 provided a sample mean of 29.25. The population standard deviation is 3. The value of the test statistic is :
-2.25
-1.5
2.25
-0.5
