4RelativeResourceManager

4RelativeResourceManager - Review Problems for Test 2 Extra...

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Review Problems for Test 2 Extra problems 1. The average time it takes to take test 1 is 25 minutes with a standard deviation of 12 minutes. The time it takes to take test 1 is known to be normally distributed. a. Describe this distribution. b. What is the probability a randomly selected student will take less than 27 minutes to take test 1? i. What is the random variable? ii. Describe this distribution. iii. Can the probability be found? iv. If the probability can be found, what is it? c. If a random sample of 9 students is selected, what is the probability that the mean time to take test 1 for these 9 students is less than 27 minutes? i. What is the random variable? ii. Describe this distribution. iii. Can the probability be found? iv. If the probability can be found, what is it? d. If a random sample of 36 students is selected, what is the probability that the mean time to take test 1 for these 36 students is less than 27 minutes? i.
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4RelativeResourceManager - Review Problems for Test 2 Extra...

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