1 is a parameter because it is the mean of the population and 1.07 is a statisti
ID: 1114262 • Letter: 1
Question
1 is a parameter because it is the mean of the population and 1.07 is a statistic because it is the mean of a sample.
How well materials conduct heat matters when designing houses.As a test of a new measurement process, 10 measurements are made on pieces of glass known to have conductivity 1.
The average of the 10 measurements is 1.07.
Is each of the boldface numbers a parameter or a statistic?
Explain your answer.
1 is a parameter because it is the mean of the population and 1.07 is a statistic because it is the mean of a sample.
What can teachers do to alleviate statistics anxiety in their students? To explore this question, statistics anxiety for students in two classes was compared. In one class, the instructor lectured in a formal manner, including dressing formally. In the other, the instructor was less formal, dressed informally, was more personal, used humor, and called on students by their first names. Anxiety was measured using a questionnaire. Higher scores indicate a greater level of anxiety. The mean anxiety score for students in the formal lecture class was 25.40; in the informal class the mean was 20.41. For each of the boldface numbers, indicate whether it is a parameter or a statistic. 25.40 is statistics and 20.41 is parameters. Both 25.40 and 20.41 are statistics. 25.40 is parameters and 20.41 is statistics. Both 25.40 and 20.41 are parameters.Explanation / Answer
Parameters belong to population data but samples belong to sample data set. Therefore:
(Question 1) Option (D)
1 is a parameter but 1.07 is a statistic.
(Question 2) Option (B)
Both values belong to sample data, so both are statistic.
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