SOLUTION: A medical school claims that more than 28% of its students plan to go into general practice. It is 29) found that among a random sample of 130 of the school's students, 32% of them

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Question 1025647: A medical school claims that more than 28% of its students plan to go into general practice. It is 29) found that among a random sample of 130 of the school's students, 32% of them plan to go into
general practice.Find the P-value for a test of the school's claim.

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
This is a one-tail test.
Ho: p<=0.28
Ha: p>0.28
alpha=0.05
critical value: z>1.645
The actual number of students for 32% is 42. The actual percentage was 32.3%
z=(0.323)-0.28)/sqrt{(.28)(.72)/130}=0.043/.039=1.10
Insufficient evidence to reject Ho. The percentage may not be more than 28%.
The p-value is 0.14