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 customer satisfaction survey is an example of which of the following?

Collecting primary data

Conducting a census

Performing a controlled experiment

Using secondary data

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Verified step by step guidance

Understand the definitions of the terms provided in the options: Primary data refers to data collected directly from the source for a specific purpose. A census involves collecting data from every member of a population. A controlled experiment involves manipulating variables to observe effects. Secondary data refers to data that has already been collected by someone else for a different purpose.

Analyze the context of the problem: A customer satisfaction survey involves directly collecting responses from customers to understand their satisfaction levels. This is a direct data collection process.

Determine whether the data is primary or secondary: Since the survey collects data directly from customers, it is considered primary data, not secondary data.

Evaluate whether the survey is a census: A census would require collecting data from every single customer in the population, which is not typically the case for a survey. Therefore, it is not a census.

Assess whether the survey is a controlled experiment: A controlled experiment involves manipulating variables and observing outcomes, which is not the case in a customer satisfaction survey. Thus, it is not a controlled experiment.