Entrance to a prestigious MBA program in India is determined by a national test v*here only the top 10% of the examinees are admitted to the program Suppose it is known that the scores on this lest are normally distributed with a mean of 590 and a standard deviation of 70 Parul Monga is trying desperately to get into this program What is the minimum score that she must earn to get admitted? Use table 1 (Round \"z\" value to 2 decimal places and final answer to 1 decimal place.)
Let X be the scores for the entrance exam.
X is normal with (590,70)
To be in top 10%
we have to calculate the 90th percentile of z first then x
90th percentile of z = P(Z<=z) =0.90
z= 1.28
Hence X = 590+70(1.28)
=679.6
To get entrance score should be more than 679.6
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