In a random sample of eleveneleven cell phones, the mean full retail price was $471.50471.50 and the standard deviation was $209.00209.00. Assume the population is normally distributed and use the t-distribution to find the margin of error and construct a 9090% confidence interval for the population mean muμ. Interpret the results. Question content area bottom Part 1 Identify the margin of error. enter your response here ▼ cell phones square dollars dollars (Round to one decimal place as needed.)
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To construct a 90% confidence interval for the population mean using the t-distribution, we will follow these steps: Show more…
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