Use the Following to Answer Questions

question 54

Multiple Choice

Use the following to answer questions :
In a hypothesis test with hypotheses and ,a random sample of size 481 produced a sample proportion of 0.4350.The test is to be made at the 5% significance level.
-What is the critical value of z?

• A)1.96
• B)1.645
• C)2.12
• D)2.72

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Definitions:

Operational Definition

A clear, precise definition of a variable in terms of the processes or operations used to measure or identify it.

Tuskegee Syphilis Study

A notorious and unethical study conducted from 1932 to 1972 by the U.S. Public Health Service to observe the natural progression of untreated syphilis in African-American men.

Ethical Abuse

A term not widely recognized in professional literature, but suggests behaviors or practices that might exploit or harm individuals under the guise of ethical norms.

Inferential Statistics

A branch of statistics that uses a sample of data to make inferences about the general population from which the sample was drawn.