SOLUTION: Last q before my exam: Football fans claim that it takes 35 minutes to get out of the stadium after a game when over 30000 fans attend the game.
To determine if the complains are
Algebra.Com
Question 240666: Last q before my exam: Football fans claim that it takes 35 minutes to get out of the stadium after a game when over 30000 fans attend the game.
To determine if the complains are justified , a random sample of 100 fans is taken. The average time it takes these 100 fans to exit the parking is 27 minutes and sample standard deviatian is 7 minutes.
a) Estimate the mean departe time= 27 minutes?
b) Construct a 95% CI for the mean departure time and interpret the result?
Thx soo much for all your help
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Football fans claim that it takes 35 minutes to get out of the stadium after a game when over 30000 fans attend the game.
To determine if the complains are justified , a random sample of 100 fans is taken. The average time it takes these 100 fans to exit the parking is 27 minutes and sample standard deviatian is 7 minutes.
a) Estimate the mean departe time = 27 minutes?
b) Construct a 95% CI for the mean departure time and interpret the result?
----------
sample mean: 27 min
------
standard error: SE = t*s/sqrt(n)
t = invT(0.025,99) = 1.9842
SE = 1.9842*7/sqrt(100) = 1.389
---
95% CI: 27-1.389 < u < 27+1.389
95% CI: 25.61 < u < 28.389
---------------------------------
Meaning: We are 95% confident the mean departure time is between
25.61 min and 28.389 min
==================================
Cheers,
Stan H.
RELATED QUESTIONS
At a recent baseball game, the home team was losing so badly that 25% of the 4,280 fans... (answered by solver91311)
A football stadium has a capacity of 53,983. If 47,892 fans attended the game, what... (answered by ikleyn)
The owner of a football team claims that the average attendance at home games is over... (answered by stanbon)
The number of workers n needed to clean a stadium after a game varies inversely as the... (answered by stanbon)
there are currently 100,000 people in a stadium watching a soccer game. when the game... (answered by MathLover1,MathTherapy)
A student finishes the first half of a exam in 2/3 the time it takes him to finish the... (answered by checkley79)
For the opening home game of the baseball season, the Madd Batters minor league baseball... (answered by josmiceli)
a crowd of 62,094 fans filled 85%of the Ponmet Stadium Saturday to veiew the Lion's first (answered by nerdybill)
a car and a bus both leave UJ at the same time. the car arrives at the stadium 20 minutes (answered by macston)