SOLUTION: A TEST INVOLVING ONE POPULATION PROPORTION:
a recent article in USA today reported that job awaits only one in three new college graduates. the major reasons given were an overabu
Algebra.Com
Question 903679: A TEST INVOLVING ONE POPULATION PROPORTION:
a recent article in USA today reported that job awaits only one in three new college graduates. the major reasons given were an overabundance of college graduates and a weak economy. A survey of 200 recent graduates from your school revealed that 80 students had jobs. at the .02 significant level we can conclude that a larger proportion of graduates at your school have jobs?
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
Ho: p = .33
Ha: p > .33 (claim)
-----------------------------------------
sample proportion = p-hat = 80/200 = 2/5 = .4
---
test stat:: z(x > .4) = (0.4-0.33)/sqrt[(1/3)(2/3)/200] = .07/.03= 2.33
-----
p-value = P(z > 2.33) = 1 - P( Z < 2.33) = 1 - .99 = .01
Since the p-value is less than .02, reject Ho.
The test results support the claim.
RELATED QUESTIONS
I am lost on this one-USA Today, in a December 2004 article titled “There's no place like (answered by robertb)
In a recent year, the Better Business Bureau settled 75% of complaints they received.... (answered by Theo)
6.
Identify whether the variab le in the informat ion below is qualitative or... (answered by luki1014)
In a recent year, the Better Business Bureau settled 75% of complaints they received.... (answered by Theo)
8.32 In a survey of 2,395 adults, 1,916 reported that
e-mails are easy to misinterpret,... (answered by Boreal)
A sample of 200 claims processed under the the insurance system revealed 180 of the... (answered by stanbon)
According to a report in USA Today, only 3.2% of all product coupons are reimbursed. (answered by Manny Pacquiao)
USA today reported that about 47% of the general consumer population in the U.S. is loyal (answered by stanbon)
USA Today reported that the U. S. (annual) birth rate is about 16 per 1000 people, and... (answered by Boreal)