Mathematics, 02.11.2020 22:30 kaiyerecampbell95
2. IQ tests are usually designed so that the scores are normally distributed with mean 100 and standard
deviation 15. Suppose the Faculty of Education and Department of Psychology at ABC getſ together to
design a new IQ test for middle school children which will follow this pattern.
(a) (2 points) What score would a child have to get to fall into the top 10% of all test takers?
(b) (3 points) What is the range of scores making up the interquartile range?
17
Answers: 2
Mathematics, 21.06.2019 19:30
Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%
Answers: 2
Mathematics, 21.06.2019 20:20
One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%
Answers: 1
Mathematics, 21.06.2019 21:00
Consider the polynomials given below. p(x) = x4 + 3x3 + 2x2 – x + 2 q(x) = (x3 + 2x2 + 3)(x2 – 2) determine the operation that results in the simplified expression below. 35 + x4 – 573 - 3x2 + x - 8 a. p+q b. pq c.q-p d. p-q
Answers: 2
2. IQ tests are usually designed so that the scores are normally distributed with mean 100 and stand...
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