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The class teacher of Business statistics II assumed that the average height of the students of this class is 60 inches. The population standard deviation
The class teacher of Business statistics II assumed that the average height of the students of this class is 60 inches. The population standard deviation of the height is 2 inches. To justify the assumption, the Director of BBA program selected 40 students and found that the average height of the students is 65 inches.At 0.05 level of significance, can the Director conclude that the average height of the students is more than 60 inches?
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