A Local Cable System Using a Sample of 1000 Subscribers

question 3

True/False

A local cable system using a sample of 1000 subscribers estimates that fifty percent of its subscribers watch premium channel at least five times per week. This is an example of inferential statistics as opposed to descriptive statistics.

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Definitions:

Normally Distributed

A type of statistical distribution where the data tends to cluster around a central mean, with a symmetrical spreading outwards, resembling a bell-shaped curve.

Sample Size

The number of observations or items selected from a population to participate in a statistical analysis.

Correlation Coefficient

A rephrased definition from KT-15: A numerical index ranging from -1 to 1 that indicates the extent to which two variables have a linear relationship.

Interval Variables

Another term for interval data, indicating variables measured along a scale on which each point is placed at equal distance from one another, with meaningful quantifiable differences but without a true zero.