Week 3 Assignment – The Foundation of Data-Driven Decisions

Scenario: You would like to determine whether eating before bed influences sleep patterns.

Remember that the steps 7 steps of a statistical study are:

1. Formulate the purpose of the study.

2. Identify the variables for the study.

3. Define the population.

4. Decide what sampling method you will use to collect the data.

5. Collect the data.

6. Summarize the data and perform any statistical calculations needed.

7. Interpret the results (Week 2 Learn, 1).

Explain what you would do to complete each step of a study where you would like to determine whether eating before bed influences sleep patterns. What would you need to do and what would you need to consider to complete each step?

Step 1

Step 2

Step 3

Step 4

Step 5

Step 6

Step 7

Then, answer the questions below.

What is your hypothesis?

How would the results of the data influence decisions you might make about eating and sleeping?

How would we know if the results of the study are valid and reliable?

What questions would you ask to find out more about the quality of the data?

Why is it important to gather and report valid and reliable data?

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