A scientist wants to find the percent of teens that like the taste of "brand X"lemonade over "brand Y" lemonade. She conducts a taste test of 500 teenagers. She gives

each teen a bottle of lemonade with the labels showing the brand of each lemonade. She asks each teenager to taste each brand after drinking water in between. She

finds that 50% of teens like brand X and 50% like brand Y lemonade. Why are the results of the survey most likely unreliable?

Adults were not interviewed.

Not enough teens were interviewed.

The investigation was based on taste.

The lemonade labels introduced bias.

Question

Biology

Genevieve Garner

27 February, 09:44

A scientist wants to find the percent of teens that like the taste of "brand X"lemonade over "brand Y" lemonade. She conducts a taste test of 500 teenagers. She gives

each teen a bottle of lemonade with the labels showing the brand of each lemonade. She asks each teenager to taste each brand after drinking water in between. She

finds that 50% of teens like brand X and 50% like brand Y lemonade. Why are the results of the survey most likely unreliable?

Adults were not interviewed.

Not enough teens were interviewed.

The investigation was based on taste.

The lemonade labels introduced bias.

+1

Answers (1)

Know the Answer?

Heather Booth · Answer 1

The labels introduced bias. Most or all of those teens could've tried those lemonades before and already decided which one they like. Or maybe they already had a natural bias towards a certain brand used.