Mathematics, 25.05.2021 08:40 damian11154

Please help with this question on my test!! A store owner asks each person to write "Yes" or "No" on a slip of paper as they leave, secretly writing down whether they were happy with their experience. At the end of the day, the owner selects 12 slips at random and looks at them. These were the results:

yes, yes, yes, no, yes, no, yes, yes, no, yes

a. Estimate the proportion of all shoppers who were happy with their experience that day.

b. On a different day, the owner found that 25% of the 12 selected slips were marked "Yes." Should the store owner believe that these two results reasonably represent the overall population of happy shoppers, or should the owner gather more data?

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