SOLUTION: 2 psychologists, Alfred and Bertha, have theories about schizophrenia in the American population. Alfred claims that 20% of Americans suffer from schizophrenia. Bertha disagrees,
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-> SOLUTION: 2 psychologists, Alfred and Bertha, have theories about schizophrenia in the American population. Alfred claims that 20% of Americans suffer from schizophrenia. Bertha disagrees,
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Question 64373: 2 psychologists, Alfred and Bertha, have theories about schizophrenia in the American population. Alfred claims that 20% of Americans suffer from schizophrenia. Bertha disagrees, but is unsure whether the percentage is higher or lower. Bertha sampled 400 people randomly, and found 103 actually had schizophrenia. If she set a significance level of .05, which of the following is appropriate?
1.Ho: p=.20
2.Ho: p is not= .20
3.Ha: p= .20
4.Ho: p>.20
5.none of these
What I know: n=400, p=.2,
from there I am stumped, please help me... thank you very much..... Answer by stanbon(75887) (Show Source):
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