A Researcher Is Interested in Estimating the Mean Weight of a Semi

question 61

Multiple Choice

A researcher is interested in estimating the mean weight of a semi tractor truck to determine the potential load capacity.She takes a random sample of 17 trucks and computes a sample mean of 20,000 pounds with sample standard deviation of 1,500.The 95% confidence interval for the population mean weight of a semi tractor truck is ______________.

• A)19,232 to 20,768
• B)19,365 to 20,635
• C)19,229 to 20,771
• D)19,367 to 20,633
• E)119.89 to 122.12 18,500 to 21,500

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