Test Whether He Given Claim Is Supported or Not Supported

question 42

Multiple Choice

Test whether he given claim is supported or not supported using a 0.05 significance level. Assume that the sample has been randomly selected from a population with a normal distribution.
-Researchers have claimed that the average number of headaches during a semester of Statistics is 18. Statistics professors dispute this claim vehemently. They believe the average is much higher. They sample 16 students and find the sample mean is 20 and the sample standard deviation is 3.0. Use a 0.05 significance level to test whether the claim that the average number of headaches is greater than 18 is supported or not supported.

• A)not supported
• B)supported

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Definitions:

Public Schools

Educational institutions that are funded and operated by the government, providing free education to students.

Systematic Racial Discrimination

A form of discrimination that is deeply embedded in the systems and institutions of a society, affecting groups based on race.

Jim Crow Laws

Racial segregation laws enacted in the southern United States, enforced until the 1960s, designed to marginalize African Americans.

Grand Apartheid

The system of racial segregation in South Africa before 1994, designed to maintain white dominance while controlling the movement and rights of the non-white populace.