The average IQ of working women in Bangladesh issuspected to be more than 220, on average. A randomsample of 55 of such women yielded an average IQ of125.5 and a standard deviation of 15. Can you concludethat the average score of the women in the population isreally more than 110? Test this at 5 percent level ofsignificance.

Answered: Image /qna-images/answer/2dfa9488-5944-46fd-a012-5b5beadc13fc.jpg

Answered: The average IQ of working women in…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Thanks to an initiative to recruit top students, an administrator at a college claims that this year's entering class must have a greater mean IQ score than that of entering classes from previous years. The administrator tests a random sample of 17 of this year's entering students and finds that their mean IQ score is 112, with a standard deviation of 15. The college records indicate that the mean IQ score for entering students from previous years is 111. Is there enough evidence to conclude, at the 0.10 level of significance, that the population mean IQ score, μ, of this year's class is greater than that of previous years? To answer, assume that the IQ scores of this year's entering class are approximately normally distributed. Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis H0 and the alternative hypothesis H1. H0:…
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