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Unformatted text preview: and standard deviation of 0.05mm. A random sample of size 20 is taken. Find the probability that the sample mean lies between 4.98mm and 5.02mm. 3. In the previous problem, ﬁnd the probability that the sample standard deviation is between 0.03mm and 0.07mm. 4. Suppose 70% of all potential customers prefer cars with a sunroof to the ones without. If the company decides to randomly poll 200 people, what is the probability that the sample percentage of sunroof lovers turns out to be below 60%? 1...
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This note was uploaded on 02/26/2008 for the course IE 121 taught by Professor Perevalov during the Spring '08 term at Lehigh University .
 Spring '08
 Perevalov

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