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Stat Tutor

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2:04

Incorrect. The mean of data in a sample is a statistic.

Correct. The mean of data in a sample is a statistic.

Incorrect. Try again.

2

Incorrect. The proportion of all of the categorical data in a population is a parameter.

Correct. The proportion of all of the categorical data in a population is a parameter.

Incorrect. Try again.

2

Incorrect. In inference we use the value of a statistic to estimate the value of a parameter.

Correct. In inference we use the value of a statistic to estimate the value of a parameter.

Incorrect. Try again.

2

3:13

Incorrect. Since the mean is of all entering freshmen, it is the mean of a population and hence, a parameter.

Correct. Since the mean is of all entering freshmen, it is the mean of a population and hence, a parameter.

Incorrect. Try again.

2

3:25

Incorrect. Since the people who were questioned are from a sample, the proportion is of a sample and hence, a statistic.

Correct. Since the people who were questioned are from a sample, the proportion is of a sample and hence, a statistic.

Incorrect. Try again.

2

3:41

Incorrect. Since the mean is of a sample of pizzas, it is a statistic.

Correct. Since the mean is of a sample of pizzas, it is a statistic.

Incorrect. Try again.

2

Incorrect. A result from a sample is a statistic and a result from a population is a parameter. What the result is (mean or proportion) does not determine whether it is a statistic or a parameter.

Correct. A result from a sample is a statistic and a result from a population is a parameter. What the result is (mean or proportion) does not determine whether it is a statistic or a parameter.

Incorrect. Try again.

2