Jule Engtreet& 3/16/18 11:00 PM Homework: Chapter 08 Revievw Score: 0 of 10 pts
ID: 3062965 • Letter: J
Question
Jule Engtreet& 3/16/18 11:00 PM Homework: Chapter 08 Revievw Score: 0 of 10 pts 40f 42 complete) Hw Score: 50%, 20°f40pts 8.6.53-T A university would like to estimate the proportion of fans whe purchase concessions at thefrest baskotball game of the season The basketbal fscilily has a arandom sample of 500 purchased cocessions durngthe gre Corstot a 95% confidence nterve.to capacity of 3,500 and is routinely sold out t was discovered thuat a total of 190 tons out of estimate the proportion of fans who punchased concessions during the game orton ofans who purchased oo cess o sdang he grei The 96% co fdence interval to est toto pro Round to tree decimal places as needed.) 6 4Explanation / Answer
Solution:
Given x = 190, n = 500
p = 190/500 = 0.38
95% Confidence interval for population proportion
P = p ± Z/2 * pq/n
= 0.38 ± (1.96) * 0.38*(1-0.38)/500
= (0.3375, 0.4225)
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