One method for measuring air pollution is to measure the concentration of carbon monoxide, or CO, in the air. Suppose Ni

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One Method For Measuring Air Pollution Is To Measure The Concentration Of Carbon Monoxide Or Co In The Air Suppose Ni 1 (151.87 KiB) Viewed 33 times

One method for measuring air pollution is to measure the concentration of carbon monoxide, or CO, in the air. Suppose Nina, an environmental scientist, wishes to estimate the CO concentration in Brussels, Belgium. She randomly selects 50 locations throughout the city measures the CO concentration at each location. Based on her 50 samples, she computes the margin of error for a 95% t-confidence interval for the mean concentration of CO in Brussels, in µg/m³, to be 1.34. What would happen to the margin of error if Nina decreases the confidence level to 90%? Nina increases the confidence level to 99%? Nina decreases the sample size to 38 locations? Nina increases the sample size to 75 locations? Decrease Answer Bank Increase Decrease Increase Increase Decrease Stay the same