Using the z-distribution, what is the estimate of the population mean if you use a confidence interval of 95%?

A random sample of 15,000 students was used to investigate spending habits of Canadian university students. The data revealed that the average Canadian university student spends $35,555 annually with a standard deviation of 2,542. Using the z-distribution, what is the estimate of the population mean if you use a confidence interval of 95%?

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