Suppose that the population standard deviation () for a normally distributed standardized test of achievement is known
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Suppose that the population standard deviation (σ) for a normally distributed standardized test of achievement is known to be 7.20. What would the standard error of the sample mean (σX̅) be if we were to draw a random sample of 16 test scores?
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Solution N 16 so X 16 sn Since n 16 the required formula is 1672072016 32 The stand...View the full answer
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Related Book For 
Elementary Statistics In Social Research
ISBN: 9780205845484
12th Edition
Authors: Jack A. Levin, James Alan Fox, David R. Forde
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