7. (20 pts) The amount of lead in paint was determined by measuring 10 samples. The mean value was found to be 200 ppt w
Posted: Mon May 02, 2022 5:59 pm
7. (20 pts) The amount of lead in paint was determined by measuring 10 samples. The mean value was found to be 200 ppt with a % relative standard deviation of 10%. The paint can label indicates that the amount of lead in the paint is 190 ppt. At the 95% confidence level, is the measured value greater than the label reports? Show all of your work.