Use the Following Sample Data to Answer the Next Questions

question 4

Essay

Use the following sample data to answer the next questions. Tracking
misdiagnoses by Emergency Room doctors, a sample of 200 patients revealed that
45 patients were misdiagnosed with indigestion instead of a heart attack. Use the
Sign test with a .05 significance level to test the claim that physicians correctly
diagnose a majority of heart attacks.
-State a conclusion about the null hypothesis and a final conclusion that addresses the original claim.

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Definitions:

Participant

An individual who takes part in an activity or event.

Observational Market Research

A method of market research where behaviors, actions, or events are watched and recorded without intervention from the researcher.

GPS Receivers

Devices that capture signals from satellites in the Global Positioning System to determine the device's precise location on Earth.

Ethnographic Research

A qualitative research method involving the systematic study of people and cultures from an insider's perspective.