i. ii. 1. The grades of 300 students of Principle of Microeconomics are normally distributed with an average of 76 with

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I Ii 1 The Grades Of 300 Students Of Principle Of Microeconomics Are Normally Distributed With An Average Of 76 With 1 (30.33 KiB) Viewed 60 times

i. ii. 1. The grades of 300 students of Principle of Microeconomics are normally distributed with an average of 76 with a standard deviation of 8 points. If you select one student for an interview then find the following What would be the probability that the grade of the student is higher than 80. What is the probability that the grade is between 72 and 86? Find 90% confidence interval for the grades. iv. A student claims that the average grade of students is 85. Test his claim using 10% level of significance Another student claims that the average grade is 73". Test this daim using 5% level of significance. ti V.