week 7 auditorstats quiz

week 7 auditorstats quiz - 1. (TCO 6) In the standard...

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1. (TCO 6) In the standard normal distribution, the standard deviation is always (Points: 5) 1 2 none of these 2. (TCO 6) The area under the standard normal curve is (Points: 5) 1 2 none of these 3. (TCO 6) If Larry gets a 70 on a physics test where the mean is 65 and the standard deviation is 5.8, where does he stand in relation to his classmates? (Points: 5) He is in the top 10%. He is in the top 20%. He is in the bottom 20%. He is in the bottom 10%. 4. (TCO 6) In a normal distribution with mu = 25 and sigma = 6, what number corresponds to z = 3? (Points: 5) 40 43 46 none of these 5. (TCO 6) Let’s assume you have taken 100 samples of size 49 each from a normally distributed population. Calculate the standard deviation of the sample means if the population’s variance is 16. (Points: 5) 0.571 0.429 0.327 0.107 6. (TCO 6) The area to the left of ‘z’ is 0.9976. What z-score corresponds to this area? (Points: 5)
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2.85 -2.89 2.82 none of these 7. (TCO 6) Find P(9 < x < 15) when mu = 12 and sigma = 2. (Points: 5)
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This note was uploaded on 01/05/2012 for the course 101 melissa jo taught by Professor Acc101 during the Spring '11 term at Aarhus Universitet.

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week 7 auditorstats quiz - 1. (TCO 6) In the standard...

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