Hypothesis Testing Question

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Hypothesis Testing Question

Postby Guest » Sat May 16, 2020 10:04 am

Records kept at a hospital show that 3 out of every 10 patients who come to A&E have to wait more than an hour before seeing a doctor.
The hospital decides to increase staffing in the A&E to reduce the proportion.
It was found that out of the next 20 patients 2 had to wait more than an hour.
Test at the 5% level of significance whether the new staffing has decreased the number of patients waiting over an hour.

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