In preparation for a meeting, you collect 6 weeks of complaint data for comparison to the original 6 weeks of baseline data. There were 246 complaints in the current 6 weeks compared to the 256 complaints in the previous 6 weeks. You also note that the number of total kits sold in the current time frame (3435) was greater than the number sold in the original time frame (2820). You wonder if the proportion of complaints has been significantly reduced.
1) At a 95% level of confidence, can you conclude that the percent of kits sold that had a complaints decreased? (paste in Minitab output. Discuss the hypothesis test: Explain null and alternative hypothesis. State conclusions in statistical terms and explain why the conclusion was made. State the conclusion in practical terms as you would state to management)
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