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

question 6

Multiple Choice

A researcher is interested in estimating the mean weight of a semi tracker 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 tracker 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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