A random sample of 328 medical doctors showed that 171 had a solo practice. (Source: Practice Patterns of General Intern

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answerhappygod
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A random sample of 328 medical doctors showed that 171 had a solo practice. (Source: Practice Patterns of General Intern

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A random sample of 328 medical doctors showed that 171 had a
solo practice. (Source: Practice Patterns of General Internal
Medicine, American Medical Association.)
(a)
Letprepresenttheproportionofallmedicaldoctorswhohaveasolopractice.
Find a point estimate for p.
(b) Find a 95% confidence interval for p. Give a
brief explanation of the meaning
of the interval.
(c) Interpretation: As a news writer, how would you
report the survey results
regarding the percentage of medical doctors in solo practice?
What is the margin of error based on a 95% confidence interval?
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