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The goal of this experiment is to find out which chapstick brand, between Burt’s Bee’s, Carmex, and Vaseline is the best at moisturizing lips.

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We are getting our expiremental units by using a random number generator to select 500 boys out of the 1,400 and 500 girls out of the 1,300.

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The treatments for out experiment will be Burt’s Bee’s, Carmex, and Vaseline(placebo).

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Our response variable for our experiment will be how effective each chapstick is on the smoothness of lips. The brand of chapstick that provides the most moisture is what we are hoping to find through this experiment.

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Vaseline will be our control group in this experiment. We are using Vaseline because it is known to be a good moisturizer for lips and skin. Vaseline will be the control group and each person will go thorough each brand for three weeks and we will see if the most basic lip moisturizer (Vaseline) hold so up against the other two brands.

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Some lurking variables may be that people have chronic chapped lips and that some may forget to apply the chapstick three times each day due to human error. To avoid these variables in our study we will send reminders through text message to apply the lip product at three points each day. Those who have chronic chapped lips could still see improvement and we will show them in our study.

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The brands of chapstick will be our explanatory variable for this experiment.

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The subjects will know what they are using by the packaging and smell of the product they are using. Those who give the products will also know what they are giving but the results will not be effected by this knowledge.

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The design of our experiment will be for each subject to try each chapstick for three weeks and then switch to a different chapstick. Each group will have tried all three chapstick brands by the end of the study.

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There are large enough gaps between the average satisfactions of Burts Bees, Carmex, and Vaseline that this data could not have been achieved by random chance. These statistics show the average satisfaction and smoothness of lips with usage of each chapstick, and these results could not have been due to random chance.

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Our sample size is relatively large with 1,000 boys and girls from Boulder Creek High School. Because the sample size is large, our margin of error is 3.16% which is good because it is a small number so there is less room for error.

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The average satisfaction rate for Burt’s Bees chapstick for the groups was 8.35 while Carmex was 3.5 and Vaseline was 5.55. This being said, Burt’s Bees provided the most satisfaction and moisture to lips for the boys and girls in this study,

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Money was lost during this experiment because of the cost of all of the chapstick. Peoples lips may have become softer, and this study could be useful for the chapstick brands and for consumers looking for what brand offers the best results.

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To replicate this experiment, we would go to a different high school and gather 500 more (different

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As an example of some results of this experiment, we have set up some fictional results.

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With an experiment like this comes a cost. The more people we had in our study, the more chapsticks we would be buying. For each 500 boys and girls to try all three brands of lip moisturizers, we would need 1,000 of each chapstick brand. Vaseline would come out to be $1,890, Burt’s Bees would be $3,000, and Carmex would be $2,000 for a grand total of $6,890 just on chapstick. Our subjects and team would not be getting paid, as there isnt too much time and or effort on either of our parts.

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500 random selected boys and 500 randomly selected girls from Boulder Creek High School