To estimate the accuracy of a laboratory scale, a weight

Last updated: 7/11/2022

To estimate the accuracy of a laboratory scale, a weight known to have a mass of 98 grams is weighed 32 times. The reading of the scale is recorded each time. The following MINITAB output presents a 95% confidence interval for the mean reading of the scale. The assumed standard deviation 2.5000 Variable Part 1 of 3 Mean Scale Reading 32 102.3527 2.5000 0.44194 (101.4865, 103.2189) Part 2 of 3 St Dev (a) A scientist claims that the mean reading His actually 98 grams. Is it likely that this claim is true? It is not likely. SE Mean X 95% CI (b) Find the critical value for a 99% confidence interval. The critical value is 98