SOLUTION: The U.S. Customs Service conducted a random check of Miami longshoremen and found that 36 of 50 had arrest records. (a) Construct a 90 percent confidence interval for the true prop

Question 452221: The U.S. Customs Service conducted a random check of Miami longshoremen and found that 36 of 50 had arrest records. (a) Construct a 90 percent confidence interval for the true proportion.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The U.S. Customs Service conducted a random check of Miami longshoremen and found that 36 of 50 had arrest records. (a) Construct a 90 percent confidence interval for the true proportion.
---
sample proportion: 36/50 = 0.72
---
SE = 1.645*sqrt[0.72*0.28/50] = 0.104
----
90% CI: 0.72-0.104 < p < 0.72+0.104
=======================================
Cheers,
Stan H.
===========
RELATED QUESTIONS
The U.S. Customs Service conducted a random check of Miami longshoremen and found that 36 (answered by stanbon)

A recent news report had found that 68% of all internet searches use Google (a website... (answered by Boreal)

The U.S. Department of Education reports that 46% of full-time college students are... (answered by Boreal)

A survey of 50 students found that 30 fad cats, 25 had dogs, 5 had white mice, 16 had... (answered by Edwin McCravy)

In a test conducted it was found that of 1000 new recruits, 600 men and 400 women, 50 of (answered by ikleyn)

describes the book 6 A police department believes that arrest rates R are a function of... (answered by Boreal)

Ocho Rios Autoworks, a chain of automotive tune-up shops, advertises that its personnel... (answered by ikleyn)

Ocho Rios Autoworks, a chain of automotive tune-up shops, advertises that its personnel... (answered by Theo)

A recent survey found that 50% of mobile phone users, between the ages of 18 to 34, had a (answered by ewatrrr)