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Our results were represented on ESPN. Some of our participants continued to play ping pong basketball.

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What type of ball is better for basketball?

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Our explanatory variable is which type of ball our units use, basketball, soccer ball, ping pong ball, or baseball.

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With a sample size of 10, our margin of error is 32%. The margin of error isn’t that good, so we would need to replicate the experiment to get a better representation of the population.

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We technically  don’t have a control group since it is a crossover design. The control treatment would be the basketball since it is normal.

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We will replicate this study with 10 more students that didn’t already do the experiment.

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After each unit shot every ball 10 times,  we calculated their shooting percentage for each treatment.

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We are not able to blind our subjects, because they will know what type of ball they would be shooting by feeling it. There is no double blind either because the subject are shooting every ball.

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We matched up people by their gender. Then we randomly assigned a treatment. After they finish that treatment they do the other ones.

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We assigned everybody in the school a number. We picked at random until we got 5 boys and 5 girls. Potential lurking variables are basketball experience and height.

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Our experimental units were 10 random students.

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We found 5 boys and 5 girls.

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At the end of the experiment the average basketball percentage was 51%. The average for the soccer ball was 37%. The average for the ping pong ball was 56%. The average for the baseball was 44%. The ping pong ball had the best shooting percentage.

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The students were randomly assigned to one of the four balls.