Conclusion

 

I ran three different hypothesis tests, and as such, I am going to make three different conclusions.  I failed to reject the first null hypothesis that the proportion of females that preferred Pepsi was the same as the proportion of the males that preferred Pepsi since my p-value > α. Therefore, there is not enough significant  information to prove that the amount of males that prefer Pepsi is significantly different than the amount of females that prefer Pepsi. 

 

I failed to reject the second null hypothesis that the proportion of people that prefer Pepsi is different by grade since the distribution is in line with the expected values. Therefore, there is not enough significant  information to prove that the distribution of people that prefer Pepsi by grade is significantly skewed toward one grade or another. 

 

I rejected the third null hypothesis at the .05 level because our p-value < α.  Therefore, there is enough significant evidence to prove that the true mean proportion of people that prefer Pepsi is not the same as people that prefer Coke.

 

The evidence that I have presented hear in this study shows that Pepsi is not the "drink of a new generation" as they have claimed to be.  They have obviously failed on their marketing plans and need to restructure their marketing plans.  Pepsi and Coke need to look at who their product is most popular with and restructure their marketing plans to go after those people that they already have in their core group.  However, these results are not just for taste.  Sales play an even larger factor, and just because more people prefer the taste of Coke does not exactly mean that those people tend to drink Coke more.  I did not look up sales during my background research, but they are an important factor to whether or not more people tend to drink Pepsi or Coke.