The concentration of carbon monoxide (CO) in a gas sample is measured by a spectrophotometer and found to be 85 ppm. Through long experience with this instrument, it is believed that its measurements are unbiased and normally distributed, with an uncertainty (standard deviation) of 8 ppm. Find a 95% confidence interval for the concentration of CO in this sample.

Statistics 200 Week One Notes Writing in red are examples of ways to remember what terms go together and what the terms mean. Writing in green are examples of the terms. Chapter One and Two Terms Statistics: The science of learning from data Quantitative Data: Data that is numerical (Quantity = Numbers) Qualitative Date: Data that is categorical...