Nursing Elites

1. When the sampling distribution of means is plotted, which of the following is true?

• A. The distribution is approximately normal.
• B. The distribution is positively skewed.
• C. The distribution is negatively skewed.
• D. There is no predictable shape to the distribution.

Correct answer: A

Rationale: When the sampling distribution of means is plotted, the distribution tends to be approximately normal, especially as the sample size increases. This phenomenon is described by the Central Limit Theorem, which states that the sampling distribution of the sample mean will be normally distributed regardless of the shape of the original population distribution as long as the sample size is sufficiently large. Choices B and C are incorrect because sampling distributions of means are not skewed. Choice D is incorrect because there is a predictable shape to the distribution, which is approximately normal.

2. What is it called when base units are combined, such as g/mL for density?

• A. combined units
• B. derived units
• C. base units
• D. calculated units

Correct answer: B

Rationale: The correct answer is B: derived units. When base units (such as grams or milliliters) are combined, as seen in g/mL (grams per milliliter) for density, they form derived units. Derived units measure complex quantities that are derived from combinations of base units. Choice A, 'combined units,' is incorrect as it does not specifically refer to the formation of new units from base units. Choice C, 'base units,' is incorrect because base units are the fundamental units from which all other units are derived, not the combinations of units. Choice D, 'calculated units,' is incorrect as it does not accurately describe the concept of combining base units to form a new unit like g/mL for density.

3. Which term describes the most likely structure of an essay about the similarities and differences between World War I and World War II?

• A. Technical
• B. Expository
• C. Cause/effect
• D. Compare/contrast

Correct answer: D

Rationale: The correct answer is 'Compare/contrast.' This structure is specifically designed to analyze and highlight the similarities and differences between two subjects, making it the most appropriate choice for an essay discussing the similarities and differences between World War I and World War II. Choice A, 'Technical,' typically involves detailed, specialized information rather than comparison. Choice B, 'Expository,' focuses on explaining or describing a topic without necessarily comparing or contrasting different subjects. Choice C, 'Cause/effect,' is used to examine the causes and consequences of events, which is different from directly comparing and contrasting two historical events like World War I and World War II.

4. What is the result of dividing 8 by 4?

• A. 2
• B. 4
• C. 6
• D. 8

Correct answer: A

Rationale: To find the result of dividing 8 by 4, we divide 8 by 4, which equals 2. Choice B (4) is incorrect because it is the divisor, not the result of the division. Choice C (6) is incorrect as it is not the correct quotient. Choice D (8) is incorrect as it is the dividend, not the result of the division.

5. Though the term nomad is often associated with early populations, nomadic cultures exist today, especially in the mountains of Europe and Asia. Which of the following punctuation marks is used incorrectly?

• A. the comma after populations
• B. the comma after today
• C. the apostrophe in mountain’s
• D. the period after Asia

Correct answer: C

Rationale: The apostrophe in 'mountain’s' is used incorrectly. The word should be 'mountains' without the apostrophe because it is a plural noun, not possessive. The other choices (A, B, D) have the correct usage of punctuation marks and do not contain errors related to punctuation.

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