QuestionWhich data collection method tests if the wristband's glucose level is within $10\%$ of a standard blood test?

Studdy Solution
Option b involves choosing a random sample of people and random times throughout the day and measuring their blood sugar using both the wristband and a standard blood test. This option allows for a direct comparison of the two methods in the same individuals at the same time, and it does not introduce any obvious bias. Therefore, this is the most appropriate data collection process.
The correct answer is Choose a random sample of people and random times throughout the day and measure their blood sugar using both the wristband and a standard blood test.