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The scores on a placement test given to college freshmen for the past 5 years are approximately normally distributed with a mean of 76 & a variance of 6. Would one still consider the value 6 to be still valid if the variance of a random sample of 15 students who take the placement test this year has the value 11? Find an appropriate probability for this question, then give a conclusion. Select the closest correct answer. OA. 0.02853, not valid OB. none of the other answers are correct OC. 0.09260, not valid OD. 0.02853, still valid O E. 0.09260, still valid

The scores on a placement test given to college freshmen for the past 5 years are approximately normally distributed with a mean of 76 & a variance of 6. Would one still consider the value 6 to be still valid if the variance of a random sample of 15 students who take the placement test this year has the value 11? Find an appropriate probability for this question, then give a conclusion. Select the closest correct answer. OA. 0.02853, not valid OB. none of the other answers are correct OC. 0.09260, not valid OD. 0.02853, still valid O E. 0.09260, still valid

MATLAB: An Introduction with Applications
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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The scores on a placement test given to college freshmen for the past 5 years are approximately normally distributed with a mean of 76 & a variance of 6. Would one still consider the value 6 to be still valid if the variance of a random sample of 15 students who take the placement test this year has the value 11? Find an appropriate probability for this question, then give a conclusion. Select the closest correct answer. OA. 0.02853, not valid OB. none of the other answers are correct OC. 0.09260, not valid OD. 0.02853, still valid O E. 0.09260, still valid
Transcribed Image Text:The scores on a placement test given to college freshmen for the past 5 years are approximately normally distributed with a mean of 76 & a variance of 6. Would one still consider the value 6 to be still valid if the variance of a random sample of 15 students who take the placement test this year has the value 11? Find an appropriate probability for this question, then give a conclusion. Select the closest correct answer. OA. 0.02853, not valid OB. none of the other answers are correct OC. 0.09260, not valid OD. 0.02853, still valid O E. 0.09260, still valid
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