You are conducting a study to see how much high school students spend on back to school shopping. You first need to determine how many high schoolers to survey. Based on a study done last school year, you believe the population standard deviation is approximately o = 60.7 dollars. You would like to be 90% confident that your estimate is within 1 dollar(s) of average spending on back to school shopping. How many high school students do you have to sample?

You are conducting a study to see how much high school students spend on back to school shopping. You first need to determine how many high schoolers to survey. Based on a study done last school year, you believe the population standard deviation is approximately o = 60.7 dollars. You would like to be 90% confident that your estimate is within 1 dollar(s) of average spending on back to school shopping. How many high school students do you have to 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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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 ở = 69.9 dollars. You would like to be 95% confident that your estimate is within 3 dollar(s) of average spending on the birthday parties. How many parents do you have to sample? instructor
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