angelricardoblp8kwg3
19.03.2020 •
Mathematics
1. The Dallas Morning News is running a series of articles to see if the residents of Dallas still support the Mayor's decision to block the Dallas Cowboys from moving into a new Fair Park stadium now that the city of Arlington has had an unprecedented growth. In the 10 years since the new stadium opened, the stadium has brought in far more money for taxpayers than the benefit given to the Cowboys for moving to Arlington, ASRS of 1250 Dallas adults were asked and only 76 said they still support the Mayor's decision.
A) Find the appropriate critical value for the problem
b) What is the margin of error?
c) Construct a 90% confidence interval to estimate the true proportion of residents who still
support the Mayor's decision. Show your work.
d) Is it Plausible that the true proportion is .05?
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Ответ:
A+B only 10% = 1250/2x1-2 = 0 1250/76 = x 1.6 + (+1=2.5%) 90% vote = 1226 95%=1302 99% 1377 5% 1188 2.5% 1169
Step-by-step explanation:
A= deduct this from sample size B it is usually 5 of the vote% so in comparison wont hinder the negative we deduct 1 from the 5%. B. Margin of error is 2.5% deduction comparison was Mayor was asking for a negative outcome with a positive vote. which is biased alone. Loss of confidence due to margins.
Ответ:
so hmm, if say the speed rate of the wind is "w", when the plane is flying with the wind, is not really flying 325 mph, is really flying " 325 + w " fast.
now, when the plane is going against the wind, so-called upwind, is not really going 325 mph either, is really going " 325 - w " fast.
now, bear also in mind that, it took "t" hours to go one way, and it also took "t" hours to go the other way.
so.... let's check then