Piggly Wiggly Experiment

439 Words2 Pages
Introduction: You hear from people all the time saying that certain grocery store are cheaper than other stores. For example, Piggly Wiggly is one of the more expensive stores where as Publix is considered to be cheaper. I’ve always wondered is there really a huge difference between the stores, but never took the time to compare the prices. I shop more at Piggly Wiggly because it is more convenient to shop there since it is closer to my home. I decided to do some research on my own and do some price comparison for the two grocery stores and determine does Piggly Wiggly charge more for their groceries. Objectives: 1. To compare prices of a selection of products at Piggly Wiggly and Publix. 2. To show data that represents the price comparisons…show more content…
All hypothesis tests must start with two hypotheses, null and the alternate hypothesis. The null hypothesis will reflect that there is no observed effect for our hypothesis. Null hypothesis is denoted by H0. The alternative hypothesis reflects the opposite; there will be an observed effect for our experiment. Alternative hypothesis is denoted by H1 or HA. The mean prices at Piggly Wiggly are 15 cents cheaper when compared to Publix. Showing that on average, out of the 22 products selected the average prices at Piggly Wiggly are less than the average prices at Publix. The standard deviation shows how much difference there is from the mean. Piggly Wiggly and Publix standard deviations are both low numbers, indicating that their prices are very similar to the mean value. CONCLUSION: The data that was collected was place into Minitab, which helps perform each test. Each test compared prices of products at Piggly Wiggly versus Publix. An average for all products were compared between both grocery stores. Lastly, after each price is combined, the data showed that there was a difference in prices at Piggly Wiggly and Publix. There were products that were similar offered at both grocery stores. Unfortunately, my hypothesis was wrong Piggly Wiggly is cheaper than
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