Suppose researchers are about to draw a sample of 1500 observations from anormally distributed population, and use this data to create a confidence interval forthe population mean using the t procedure. They don't know much about statistics,and decide to use a ta/2 value of 0.46 to calculate the margin of error. (Since,curiously, that is their favourite number.) What is the confidence level of thisconfidence interval?Express your response as a percentage, but do not include the percent sign. e.g. Ifthe confidence level is 87.6%, then enter 87.6.(Give your numeric response to at least 1 decimal place. Give only your numericresponse, and not any extra characters or symbols.)

Sample size, n = 1500 tα/2 = 0.46 We have to find the confidence level.

Answered: Suppose researchers are about to draw a…

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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If you want to be confident in your estimation of a confidence interval, you should use….
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SAT scores. The standard deviation of SAT scores for students at a particular Ivy league college is 250 points. two statistical students, Raina and Luke, want to estimate the average SAT score of students at this college as part of a class project. they want their margin of error to be no more than 25 points. Raina antes to use a 90% confidence interval, how large of a sample should she use?

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