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

question 74

Essay

Use the one-proportion z-test to perform the required hypothesis test. Use the P-value approach.
-A research group claims that less 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, do the data provide sufficient evidence to conclude that the percentage of all students at this school who plan to go into general practice is less than 28%?

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