Luis is an avid baseball player. For his science project, he decides to test which type of bat

is best for hitting home runs. Luis prefers to use an aluminum bat when he plays, so he
hypothesizes that he will hit more home runs using an aluminum bat than a wooden bat.
During batting practice, he tests his hypothesis. He hits a baseball with a wooden bat and
it lands near first base. He swings the aluminum bat with all his might and the ball sails
over the back fence. He concludes that the data supports his hypothesis.
Which of the following statements reveals Luis’ experimental bias?
A. He swings the aluminum bat with all his might.
B. He will hit more home runs using an aluminum bat than a wooden bat.
C. Luis is an avid baseball player.
D. He hits a baseball with a wooden bat and it lands near first base
is B the right answer

No.

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.

See later post.

Yes, the correct answer is B. "He will hit more home runs using an aluminum bat than a wooden bat." This statement reveals Luis' experimental bias because he already has a strong preference for using an aluminum bat, and his hypothesis is based on this preference rather than objective observations or data. This bias may introduce a potential confounding factor into his experiment and can influence his interpretation of the results.

A is right