Use the One-Proportion Z-Test to Perform the Required Hypothesis Test

question 5

Essay

Use the one-proportion z-test to perform the required hypothesis test. Use the critical-value approach.
-A research group claims that fewer than 28% of students at one medical school plan to go into general practice. It is found that among a random sample of 120 of the school's students, 20% of them plan to go into general practice. At the 0.10 significance level, test the research group's claim.

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Definitions:

Crossover Point

The point at which two different processes, costs, or investments meet in terms of efficiency, cost, or profitability.

Variable Costs

Expenses that vary directly with the volume of output or operations.

Full-Service Restaurant

A dining establishment that offers a wide range of services including table service, food, and drinks, as opposed to limited-service or fast-food restaurants.

Affluence

The state of having a great deal of wealth or material prosperity, often associated with a high standard of living and consumption.