Assume that all grade-point averages are to be standardized on a scale between 0 and 4. Howmany grade-point averages must be obtained so that the sample mean is within 0.015 of thepopulation mean? Assume that a 98% confidence level is desired. If using the range rule of thumb, o can4-0be estimated as= 1. Does the sample size seem practical?4range4The required sample size is(Round up to the nearest whole number as needed.)PMPMPMPM

Given ,Margin of error , E = 0.015Confidence,level,,Using formula,,level,,

Answered: Assume that all grade-point averages…

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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I only need part B
Assume that all grade point averages are to be standardized on a scale between 0 and 4. How many grade point averages must be obtained ao that the sample mesn is within 0.01 of the population mean? Assume a 99% confidence level is desired. Is using the range rule of thumb, ó can be estimated as range/4 = 4-0/4 = 1. Does the sample size seem practical?
Assume that a sample is used to estimate a population proportion p. Find the margin of error M.E. that corresponds to a sample of size 319 with 20.1% successes at a confidence level of 90%. M.E.= 96 Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Round final answer to one decimal place
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