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| Teaching Since: | May 2017 |
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MCS,MBA(IT), Pursuing PHD
Devry University
Sep-2004 - Aug-2010
Assistant Financial Analyst
NatSteel Holdings Pte Ltd
Aug-2007 - Jul-2017
Provide a response to the following questions.
On a standard measure of hearing ability, the mean is 300, and the standard deviation is 20. Provide the Z scores for persons whose raw scores are 340, 310, and 260. Provide the raw scores for persons whose Z scores on this test are 2.4, 1.5, and -4.5.
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Using the unit normal table, find the proportion under the standard normal curve that lies in the tail for each of the following:
Â
z = 1.00
z = -1.05
z = 0
z = 2.80
z = 1.96
Â
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Suppose the scores of architects on a particular creativity test are normally distributed. Using a normal curve table (pp. 477–480 of the text), what percentage of architects have Z scores
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above .10?
below .10?
above .20?
below .20?
above 1.10?
below 1.10?
above -.10?
below -.10?
A statistics instructor wants to measure the effectiveness of his teaching skills in a class of 102 students (N = 102). He selects students by waiting at the door to the classroom prior to his lecture and pulling aside every third student to give him or her a questionnaire.
Suppose you were going to conduct a survey of visitors to your campus. You want the survey to be as representative as possible.
How would you select the people to survey?
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Why would that be your best method?
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