Show transcribed image text Two population mean comparison or Paired difference? In an experiment to see if there is a systematic difference between the weights obtained with two different scales, 10 rock specimens were weighed, in grams, on each scale. The following data were obtained: Specimen Scale 1 Scale 2 11.23 11.27 13.36 13.41 9.35 11.5 11.52 22.42 22.41 10.05 10.17 12.47 12.52 7.477.46 11.411.45 18.38 18.35 9.33 4 6 7 10 Should you use a two population method or a paired difference method to find the confidence interval for the difference in average weight between scale one and scale two? Explain. Calculate a 90% CI using the two population method. Make sure to state the degrees of freedom used Calculate a 90% CI using the paired difference method Why are the two intervals different?
Two population mean comparison or Paired difference? In an experiment to see if there is a systematic difference between the weights obtained with two different scales, 10 rock specimens were weighed, in grams, on each scale. The following data were obtained: Specimen Scale 1 Scale 2 11.23 11.27 13.36 13.41 9.35 11.5 11.52 22.42 22.41 10.05 10.17 12.47 12.52 7.477.46 11.411.45 18.38 18.35 9.33 4 6 7 10 Should you use a two population method or a paired difference method to find the confidence interval for the difference in average weight between scale one and scale two? Explain. Calculate a 90% CI using the two population method. Make sure to state the degrees of freedom used Calculate a 90% CI using the paired difference method Why are the two intervals different?
