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A news report indicates that the proportion of adults who edit their selfies before sharing them with others is 0.71. Let's say we choose a
A news report indicates that the proportion of adults who edit their selfies before sharing them with others is 0.71. Let's say we choose a simple random sample of 1000 adult selfie-takers and we determine the proportion who edit their selfies before sharing them with others. We know, if the sampling method is repeated, that the sample proportion will vary from sample to sample. In fact, if we look at the sampling distribution in this case, we will see a distribution that is Normal, with a mean (or center) of 0.71 and a standard deviation of 0.014. From this information, we know the middle 95% of this distribution will be between approximately what two values
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