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A study determined the average amount a person spends on candy during Halloween is $80 with a standard deviation of $15.

A study determined the average amount a person spends on candy during Halloween is $80 with a standard deviation of $15.

MATLAB: An Introduction with Applications
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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A study determined the average amount a person spends on candy during Halloween is $80 with a standard deviation of $15. a) How much does the top 15% spend on Halloween candy? Round your answer to two decimal places. Calculator Command: 0.0000005 Value: 5.1049 To observe how much is spent in Howard County, we will knock on 60 doors and question them. b) According to the Central Limit Theorem, is this a good enough sample? Explain your answer. 15/ square root 80= c) What is the probability our sample will spend at most $85? Round your answer to four decimal places. Calculator Command: 0.000000007 Value: 7.7385
Transcribed Image Text:A study determined the average amount a person spends on candy during Halloween is $80 with a standard deviation of $15. a) How much does the top 15% spend on Halloween candy? Round your answer to two decimal places. Calculator Command: 0.0000005 Value: 5.1049 To observe how much is spent in Howard County, we will knock on 60 doors and question them. b) According to the Central Limit Theorem, is this a good enough sample? Explain your answer. 15/ square root 80= c) What is the probability our sample will spend at most $85? Round your answer to four decimal places. Calculator Command: 0.000000007 Value: 7.7385
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