Suppose the mean of a normally distributed population is 300, and 200 simple random samples are drawn from the population. At a 68% confidence level, (one standard deviation from the mean), about how many of the samples’ confidence intervals would you exp

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Here's the word problem:

Suppose the mean of a normally distributed population is 300, and 200simple random samples are drawn from the population. At a 68% confidencelevel, (one standard deviation from the mean), about how many of thesamples’ confidence intervals would you expect to contain the populationmean?