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This Quiz: 18 pts possib Listed below are measured amounts of lead (in micrograms per cubic meter, or µg/m³) in the air. The EPA has established an air quality standard for lead of 1.5 µg/m³. The measurements shown below were recorded at a building on different days. Use the given values to construct a 95% confidence interval estimate of the mean amount of lead in the air. Is there anything about this data set suggesting that the confidence interval might not be very good? 5.40 0.90 0.35 0.72 0.73 1.00 Click here to view at distribution table. Click here to view page 1 of the standard normal distribution table. Click here to view page 2 of the standard normal distribution table, What is the confidence interval for the population mean µ? (Round to three decimal places as needed.) Is there anything about this data set suggesting that the confidence interval might not be very good? A. Yes, the value of 5.40 appears to be an outlier. B. Yes, because the confidence interval does not contain 1.5 µg/m³. C. Yes, because the sample mean is greater than 1.5 µg/m³. D. No, the data appears to be normally distributed.

          This Quiz: 18 pts possib
Listed below are measured amounts of lead (in micrograms per cubic meter, or µg/m³) in the air. The EPA has established an air quality standard for lead of 1.5 µg/m³. The measurements shown below were recorded at a building on different
days. Use the given values to construct a 95% confidence interval estimate of the mean amount of lead in the air. Is there anything about this data set suggesting that the confidence interval might not be very good?
5.40 0.90 0.35 0.72 0.73 1.00
Click here to view at distribution table.
Click here to view page 1 of the standard normal distribution table.
Click here to view page 2 of the standard normal distribution table,
What is the confidence interval for the population mean µ?
(Round to three decimal places as needed.)
Is there anything about this data set suggesting that the confidence interval might not be very good?
A. Yes, the value of 5.40 appears to be an outlier.
B. Yes, because the confidence interval does not contain 1.5 µg/m³.
C. Yes, because the sample mean is greater than 1.5 µg/m³.
D. No, the data appears to be normally distributed.

This Quiz: 18 pts possib
Listed below are measured amounts of lead (in micrograms per cubic meter, or µg/m³) in the air. The EPA has established an air quality standard for lead of 1.5 µg/m³. The measurements shown below were recorded at a building on different
days. Use the given values to construct a 95% confidence interval estimate of the mean amount of lead in the air. Is there anything about this data set suggesting that the confidence interval might not be very good?
5.40 0.90 0.35 0.72 0.73 1.00
Click here to view at distribution table.
Click here to view page 1 of the standard normal distribution table.
Click here to view page 2 of the standard normal distribution table,
What is the confidence interval for the population mean µ?
(Round to three decimal places as needed.)
Is there anything about this data set suggesting that the confidence interval might not be very good?
A. Yes, the value of 5.40 appears to be an outlier.
B. Yes, because the confidence interval does not contain 1.5 µg/m³.
C. Yes, because the sample mean is greater than 1.5 µg/m³.
D. No, the data appears to be normally distributed.

Added by Douglas H.

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