Question

True or False

1. A summary measure that is computed from a population is called a parameter.

2. A local cable system using a sample of 500 subscribers estimates that forty percent of its subscribers watch a premium channel at least once per day. This is an example of statistical inference as opposed to descriptive statistics.

3. In a sample of 500 students at a university, 12% of them are accounting majors. The 12% is an example of statistical inference.

4. The confidence level is the proportion of times that an estimating procedure will be wrong.

Answer 1

1. A summary measure that is computed from a population is called a parameter. True

2. A local cable system using a sample of 500 subscribers estimates that forty percent of its subscribers watch a premium channel at least once per day. This is an example of statistical inference as opposed to descriptive statistics. True

3. In a sample of 500 students at a university, 12% of them are accounting majors. The 12% is an example of statistical inference. False

4. The confidence level is the proportion of times that an estimating procedure will be wrong. False

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