You wish to estimate the average mark of all students who recently wrote a Medical College Admissions Test, or MCAT. You are told that the standard deviation in the test is σ =want to estimate this average to within 3%, and be 99% confident in your result.How large of a random sample should you take? (When values from a distribution, use three decimals.)n6%. You

Given,Standard deviation, σ = 6% = 0.06Margin of error, E = 3% = 0.03Confidence level, C = 99% =…

Answered: You wish to estimate the average mark…

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 mean is 146 and the standard deviation is 35. A score of 41 is how many z-scores below the mean?
Jse the Empirical Rule. The mean speed of a sample of vehicles along a stretch of highway is 64 miles per hour, with a standard deviation of 4 miles per hour. Estimate the percent of vehicles whose speeds are between miles per hour and 72 miles per hour. (Assume the data set has a bell-shaped distribution.) Approximately % of vehicles travel between 56 miles per hour and 72 miles per hour.
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You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you believe the population standard deviation is approximately o = 61.5 dollars. You would like to be 90% confident that your estimate is within 1.5 dollar(s) of average spending on the birthday parties. How many parents do you have to sample? n =
You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you believe the population standard deviation is approximately o 69.8 dollars. You would like to be 90% confident that your estimate is within 3 dollar(s) of average spending on the birthday parties. How many parents do you have to sample? n= Submit Question
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