Mathematics

10 March, 22:14

A lab is conducting a test to see if people prefer chip A or chip B. The steps in the test are outlined below:

Step 1. Recruit one hundred volunteers and tell them the purpose of the study.

Step 2. Give them chip A and ask them to rate the flavor.

Step 3. Give them chip B and ask them to rate the flavor.

Step 4. Tell them which one you like and ask if they still prefer the one they chose.

Which step could lead to biased results?

Step 1

Step 2

Step 3

Step 4

+4

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