The dean of a management school wants to check the knowledge of the students at his school

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The dean of a management school wants to check the knowledge of the students at his school about day to day international affairs. The dean arranged a quiz with 50 participants. Assume that the average score is 67 with the s of 15.

a. Construct the 95% confidence interval in which the score of all the students in the college will lie.

b. Comment on the normality of the distribution of the population.

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