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QUESTION
the mean GPA of night school is larger than 2.5 @ he 0.005 significance level. null and alternative hypothesis= ? right, left or two tailed ?
the mean GPA of night school is larger than 2.5 @ he 0.005 significance level. null and alternative hypothesis= ? right, left or two tailed ? 65 people =sample mean GPA is 2.55 with a standard deviation of 0.07 , p=value (2 decimals ) fail or reject null hypothesis ?
