Conduct a Full Hypothesis Test and Determine If the Given

question 32

Multiple Choice

Conduct a full hypothesis test and determine if the given claim is supported or not supported at the 0.05 significance level. Round all amounts and standard scores to two decimal places.
-In 1990, the average math SAT score for students at one school was 475. Five years later, a teacher wants to perform a hypothesis test to determine whether the average math SAT score of students at the school has changed. He picks a random sample of 40 students and obtains their the mean math SAT score, which is 472.
Test whether the claim that the mean math SAT score for all students at the school has changed from the previous mean of 475 is supported or not supported. Assume that the population standard deviation is 73.

• A)not supported
• B)supported

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Definitions:

Antibodies

Proteins produced by the immune system that recognize and neutralize foreign substances such as bacteria and viruses.

Fetus

A developing human from roughly the eighth week after conception until the moment of birth.

Rh Incompatibility

A condition occurring when a pregnant woman's Rh-negative blood type is incompatible with her Rh-positive baby, potentially leading to health problems in the newborn.

Rh Factors

Antigens present on the surface of red blood cells that can cause a reaction between the blood of the mother and fetus, important in pregnancy and blood transfusion compatibility.