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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 Spring '08
 Perevalov
 Standard Deviation, 0.07mm, 0.05mm, observed average biases, 0.03mm

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