A Two-Sample Z-Test for Two Population Proportions Is to Be

question 20

Multiple Choice

A two-sample z-test for two population proportions is to be performed using the P-value approach.The null hypothesis is
:
=
and the alternative is
:
≠
.Use the given sample data to find the P-value for the hypothesis test.Give an interpretation of the p-value.
-A university found it retained 25 students out of 352 in 2009 and 36 students out of 334 in 2010.

• A)P-value = 0.0455;If there is no difference in the proportions,there is about a 4.55% chance of seeing the observed difference or larger by natural sampling variation.
• B)P-value = 0.9545;If there is no difference in the proportions,there is about a 95.45% chance of seeing the observed difference or larger by natural sampling variation.
• C)P-value = 0.0455;There is about a 4.55% chance that the two proportions are equal.
• D)P-value = 0.091;There is about a 9.1% chance that the two proportions are equal.
• E)P-value = 0.091;If there is no difference in the proportions,there is about a 9.1% chance of seeing the observed difference or larger by natural sampling variation.

Understand the basic medical terminology related to radiology and imaging.

Identify the uses and functions of different imaging techniques and their applications in diagnosing diseases.

Recognize various contrast mediums used in imaging and identify potential patient allergies.

Grasp the dietary requirements for patients undergoing specific imaging procedures.

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Definitions:

Electronic Device

A gadget powered by electricity, often containing circuitry and used for purposes such as communication, computation, or entertainment.

Intravenous Fluid

A liquid substance administered directly into the vein to replace lost fluids, provide nutrients, or administer medications.

Positive Pressure

A type of pressure that exceeds atmospheric pressure, often used in respiratory therapy to aid breathing.

Peripheral Intravenous Catheter

A small, flexible tube inserted into a peripheral vein, typically in the hand or arm, for the administration of medications, fluids, or to draw blood.