## anonymous one year ago How many people would need to be surveyed on health care to estimate the mean of an entire population within 2 units if the standard deviation was 12 and we wanted a 92% confidence level? Thank you in advance!!

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1. perl

Confidence interval for population mean $$\large \mu$$ is Sample Mean $$\pm$$ Margin of Error Margin of error = (confidence coefficient)*Standard error of mean Margin of error = 2

2. perl

Can you proceed from here?