ve 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 10 of this year's entering students and finds that their mean IQ score is119, with a standard deviation of 14. The college records indicate that the mean IQ score for entering students from previous years is 110 Is there enough evidence to co

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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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 10 of this year's entering students and finds that their mean IQ score is119, with a standard deviation of 14. The college records indicate that the mean IQ score for entering students from previous years is 110 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. 

A. Find the value of the test statistic and round to 3 or more decimal places. List the degrees of freedom (I have posted a picture of an example problem and the equation to use, with the correct answer as every expert I have asked thus far has gotten this problem wrong.) 

B. Find the p-value. (Round to three or more decimal places.)

C. 

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