A Researcher Records a Sample of 30 Exam Scores and Finds

question 58

Multiple Choice

A researcher records a sample of 30 exam scores and finds that the population mean for these data is larger than the sample variance.Is this possible?

• A)yes,the population variance is usually larger than the sample variance
• B)no,the population variance will only be larger when at least 50 scores are recorded
• C)no,the sample variance will be larger because SS is divided by degrees of freedom in the denominator of the variance formula
• D)not possible to know because the scores are not given

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Definitions:

Thoracic

Relating to the thorax or chest region, involving organs such as the heart and lungs within the rib cage.

Sagittal

Referring to a plane or section that divides the body or an organ into right and left portions.

Oblique

Positioned at an angle; not perpendicular or parallel to a reference line.

Frontal

Pertaining to the forehead or the front part of the body; in anatomy, it often refers to the frontal bone or lobes of the brain.