1. Accuracy means measurements that are close to the known value and precision means that are close to each other or it refers to how close two or more measurements are to each other, regardless of whether those measurements are accurate or not. On the basis of definition the Absolute error, percent relative error are expresses accuracy and standard deviation, variance, percent relative standard deviation are expresses precision.
Help with these four analytical chemistry problems. I don't know how to do it and would...
This is non graded practices question but i would like to know how to do it step by step. a. The MGM Great Hotel in Las Vegas wants to estimate the mean time taken by its operators to make reservations. In a random sample of 100 reservation telephone calls to the reservation center (out of tens of thousands received during that time period), the mean time taken to complete a reservation is six minutes with a standard deviation of two...
Please help with all 4 of these problems. If you know how to do them with a TI 84 Calculator that would be amazing if you could list the steps for that as well. Thank you next. 1. Find the critical value the tat2 for a sample size of 43 and 99% confidence level (1 point) 2. Find the critical value the Zaz for a sam ple size of 64 and 80% confidence level. (1 point) 3. In a poll...
Can someone help me with these? I have the answer's below, but I don't know how to solve them (theres a cumulative standard normal distribution table we should refer to for some of these, so if you do, could you tell me where in the table to look to0?) Thank you so much! d) Two catalysts were tested for their effect on a chemical reaction. Six different measurements were performed on the reaction using each catalyst. The conversion at 1...