Which statements regarding measures of central tendency are accurate? (Select all that apply.)

a. This classification of levels of measurement is scientifically inaccurate.
b. Having the mean, mode, and median exactly the same indicates the measures have been correctly applied.
c. They have great flexibility with regard to the amount of mathematical manipulation possible.
d. They vary from sample to sample, even when the same trait or characteristic is measured.


ANS: C, D

Feedback
Correct Various inferential statistical tests employ mean, median, or mode in their calculations.
Measures of central tendency vary from sample to sample, even when the same trait is measured.
Incorrect The classification of levels of measurement is well accepted by the scientific community.
This is an inaccurate statement.

Nursing

You might also like to view...

A pregnant woman is admitted to the emergency department. After a toxicology screen, it is determined that the patient is an active heroin addict. The patient is in active labor and gives birth to a girl

A nurse who is caring for the newborn should anticipate which clinical manifesta-tion? a. Passivity and flat affect b. Diarrhea and salivation c. A shrill cry and irritability d. Continuous restless sleep

Nursing

A male student at a community college is being given a mumps test in the college clinic. The student asks why he is receiving the test. The nurse states:

1. "Mumps can cause sterility in males, so we check to see if you are resistant." 2. "All the students on campus should be revaccinated against the mumps." 3. "Girls of childbearing age receive the vaccine to prevent birth defects." 4. "Mumps is a vaccine given before you begin college."

Nursing

The diabetic patient who had blood drawn for an HbA1c level says, "I don't know why they want to look at my hemoglobin." The most helpful reply by the nurse would be:

a. "The test is to evaluate your present level of blood sugar." b. "The HbA1c provides information relative to blood sugar levels from the past 2 to 3 months." c. "Hemoglobin levels and blood sugar levels are closely related." d. "The HbA1c tells if you have type 1 or type 2 diabetes."

Nursing

A small nuclear weapon has been detonated in a nearby city. Which immediate symptoms of radiation sickness will the nurse assess in clients who have been exposed?

A. Dilated pupils and aggression B. Nausea, vomiting, and diarrhea C. Weight loss and fatigue D. Anorexia and fatigue

Nursing