7. It is estimated that 13% of the U.S. student population is left-handed. A simple random sampleof 200 students was taken, and 28 of the students were left handed.If p is the proportion of the sample that are left-handed, what is the mean of the samplingdistribution of p?What condition must be checked for you to use the formula for the standard deviation of p in thissetting. Check the condition.

Let p be the population proportion of the US student population left-handed. Given that, p = 13% =…

Answered: If p is the proportion of the sample…

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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In Math 150 class the points of the final exam are normally distributedWith a mean of 72 and standard deviation of 10. The top 15% will receive an A gradeFind the lowest score in the final exam that would qualify a student for an A grade.
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The scores of the Betropolis University Music Appreciation Exam are Normally Distributed with a mean of 50 and a standard deviation of 10; that is N(50, 10). A. Boris scored 40.6 and Bela scored 56.8. Find the percent of students who scored greater than Boris and less than Bela. Your answer should be correct to 4 places after the decimal point. ___________ B. 51% of the students score greater than Bernie. Find Bernie’s score. Your answer should be correct to 3 places after the decimal point. Bernie’s score was ___________
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If p is the proportion of the sample that are left-handed, what is the mean of the sampling distribution of p? What condition must be checked for you to use the formula for the standard deviation of p in this ting. Check the condition.