Table of contents

1. Introduction to Statistics53m
2. Describing Data with Tables and Graphs2h 1m
3. Describing Data Numerically1h 48m
4. Probability2h 26m
5. Binomial Distribution & Discrete Random Variables2h 55m
6. Normal Distribution & Continuous Random Variables1h 48m
7. Sampling Distributions & Confidence Intervals: Mean2h 8m
8. Sampling Distributions & Confidence Intervals: Proportion1h 20m
- Sampling Distribution of Sample Proportion
  35m
- Confidence Intervals for Population Proportion
  45m
9. Hypothesis Testing for One Sample2h 23m
10. Hypothesis Testing for Two Samples3h 25m
11. Correlation1h 6m
12. Regression1h 4m
13. Chi-Square Tests & Goodness of Fit1h 30m
14. ANOVA1h 4m

1. Introduction to Statistics

Intro to Stats

Statistics for Business

1. Introduction to Statistics

Intro to Stats

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Multiple Choice

A survey of 40 gym members from a large gym finds an average work out duration is 52 minutes. Is this a parameter or a statistic?

Parameter

Statistic

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Verified step by step guidance

Understand the difference between a parameter and a statistic. A parameter is a numerical value that describes a characteristic of a population, while a statistic is a numerical value that describes a characteristic of a sample.

Identify the population and the sample in the given problem. The population refers to all gym members of the large gym, while the sample refers to the 40 gym members surveyed.

Recognize that the average workout duration of 52 minutes is calculated from the sample of 40 gym members, not the entire population.

Since the average workout duration is derived from a sample, it is considered a statistic, not a parameter.

Conclude that the average workout duration of 52 minutes is a statistic because it describes a characteristic of the sample, not the entire population.