A random sample of 100,000 credit sales in a department store showed an average sale of $88.25. From past data, it is kn
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A random sample of 100,000 credit sales in a department store showed an average sale of $88.25. From past data, it is kn
A random sample of 100,000 credit sales in a department store showed an average sale of $88.25. From past data, it is known that the standard deviation of the population is $40.00. The margin of error is 0.248. What is the 95% confidence interval of the population mean? O 39.75 to 40.25 O 39.92 to 40.08 O 88.00 to 88.50 O 88.17 to 88.33
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