A Recent Study of 15 Shoppers Showed That the Correlation

question 59

Multiple Choice

A recent study of 15 shoppers showed that the correlation between the time spent in the store and the dollars spent was 0.235. Using a significance level equal to 0.05, which of the following is the test statistic for testing whether the true population correlation is equal to zero?

• A) t = 0.245
• B) t = 1.76
• C) t = 2.1604
• D) t = 0.872

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Definitions:

Electromagnetic Spectrum

The range of all types of electromagnetic radiation, from radio waves to gamma rays, including visible light.

Nanometers

A unit of length in the metric system, equal to one billionth of a meter, commonly used to measure wavelengths of light and the scale of atoms and molecules.

Depth Perception

The visual ability to perceive the world in three dimensions, enabling the estimation of distances.

Two-dimensional

Pertaining to something having both length and width but no depth, or pertaining to analysis or representation on a plane or flat surface.