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Part 2: Accuracy and Precision I. Select the best description for the scenarios below ACCURACY: O...
Part 2: Accuracy vs Precision The objective of this exercise is to understand the difference between...
Part 2: Accuracy vs Precision The objective of this exercise is to understand the difference between precision and accuracy in a series of measurements. Equipment Virtual Bull's Eye (2 sheets with Carbon paper in between) Procedure Part A )Imagine that you lace the Bull's Eye on the floor, and then t drop a small ball from a 2-meter height (say, extending your arm above your head), aiming at the center of the target 2) The ball, hitting the carbon paper,...
2. Explain 'accuracy', 'precision' and outlier' (3 pints)
2. Explain 'accuracy', 'precision' and outlier' (3 pints)
Select the best description for the product of the following reaction. O(S)-configured Oracemic O achiral O...
Select the best description for the product of the following reaction. O(S)-configured Oracemic O achiral O (R)-configured QUESTION 8 1 point Select the polar aprotic solvent from amongst the following. CHS - H₃COH H3C CHE оооо QUESTION 9 Select the IUPAC-name for the compound shown below. Br Br 1-fluoro-8,8-dibromononane 2,2-dibromo-9-fluorononane O9-fluoro-2,2-dibromononane 8,8-dibromo-1-fluorononane QUESTION 10 Amongst the following species, which is the most nucleophilic? A) voo Blato
CHE 120 Activity 2. Measurement Evaluations: Accuracy & Precision Associated Resources: Accuracy & Precision Handout Exercice...
CHE 120 Activity 2. Measurement Evaluations: Accuracy & Precision Associated Resources: Accuracy & Precision Handout Exercice #1: Two students weigh a powdered metal, 1: Wo students weigh a powdered metal and report the results of their multiple trials below. The exact (true/accepted) value for this mass is 8.72 9. Student #1: 8.72 g: 8.74 g: 8.70 g Student #2:8.50 g: 8.48 g: 8.519 a) Calculate the average mass from each set of data Average Set 1: _ Average Set 2:...
Determine the precision and accuracy of these data for dioxin. Sample 1 Sample 2 Sample 3...
Determine the precision and accuracy of these data for dioxin. Sample 1 Sample 2 Sample 3 21.6 78.3 271 Known concentration (ng/mL): 32.9 72.7 283 18.0 58.9 263 71.5 241 Experimentally determined values (ng/mL): 23.3 20.1 90.8 287 20.0 70.4 233 24.2 73.5 259 Sample 1 precision (relative standard deviation): % Sample 1 accuracy (relative error): % Sample 2 precision (relative standard deviation): % Sample 2 accuracy (relative error): % Sample 3 precision (relative standard deviation): % Enter numeric value...
Determine the precision and accuracy of these data for dioxin. Sample 1 Sample 2 Sample 3...
Determine the precision and accuracy of these data for dioxin. Sample 1 Sample 2 Sample 3 25.8 ng/mL 81.8 ng/mL 265 ng/mL Known concentratio 37.1 22.2 27.5 24.3 24.2 28.4 76.2 62.4 75.0 94.3 73.9 77.0 273 257 235 281 227 253 Experimentally determined values (ng/mL) Sample 1 Precision (Rel Std Deviation) Number Sample 2 Precision (Rel Std Deviation) Sample 3 Precision (Rel Std Deviation) Number Number Sample 1 Accuracy Relative Error Sample 2 Accuracy (Relative Error) Sample 3 Accuracy...
Compare if you have accuracy and precision. If I have obtained two values of measuring the...
Compare if you have accuracy and precision. If I have obtained two values of measuring the same thing. I have obtained the spring constant value of K = 4.4086± 0.0399 from (F vs x graph) and K=4.449 ± 0.01378 obtained from ( Square period vs mass graph). ( of a two experiments). Please comment in accuracy by considering that you are measuring the same k.
Which sequence of conditions best accomplishes the transformation below? Br steps Select one: O a. i)...
Which sequence of conditions best accomplishes the transformation below? Br steps Select one: O a. i) Mg; ii) CO2; iii) ETOH, H, heat o b.i) Mg; ii) SOCI; iii) EtOH, pyridine O c. i) CO2; ii) EtOH, H+ O d. i) Na2Cr207, H2SO4; ii) SOCI; ii) EtOH, pyridine
Which of the following scenarios describes scarcity at a pizza shop? Select the best answer. Answer...
Which of the following scenarios describes scarcity at a pizza shop? Select the best answer. Answer 2 Points O There are 7 slices of deluxe pizza available, and 3 people want a deluxe slice There are 12 slices of Hawaiian pizza available, and 10 people want a Hawaiian slice. There are 16 slices of pepperoni pizza available, and 18 people want a pepperoni slice.
D Question 1 Select the best description for the symbols βί and β0 in a lnear...
D Question 1 Select the best description for the symbols βί and β0 in a lnear model ßi is the population intercept and β0 is the population slope respectively βί is the sample intercept and β0 is the sample slope respectively. B is the population slope and Bo is the population intercept respectively β1 is the sample slope and β0 is the sample intercept respectively. o ๏ DQuestion 2 Select the best representation of the population regression line.
Part 2: Accuracy vs Precision The objective of this exercise is to understand the difference between precision and accuracy in a series of measurements. Equipment Virtual Bull's Eye (2 sheets with Carbon paper in between) Procedure Part A )Imagine that you lace the Bull's Eye on the floor, and then t drop a small ball from a 2-meter height (say, extending your arm above your head), aiming at the center of the target 2) The ball, hitting the carbon paper,...
2. Explain 'accuracy', 'precision' and outlier' (3 pints)
Select the best description for the product of the following reaction. O(S)-configured Oracemic O achiral O (R)-configured QUESTION 8 1 point Select the polar aprotic solvent from amongst the following. CHS - H₃COH H3C CHE оооо QUESTION 9 Select the IUPAC-name for the compound shown below. Br Br 1-fluoro-8,8-dibromononane 2,2-dibromo-9-fluorononane O9-fluoro-2,2-dibromononane 8,8-dibromo-1-fluorononane QUESTION 10 Amongst the following species, which is the most nucleophilic? A) voo Blato
CHE 120 Activity 2. Measurement Evaluations: Accuracy & Precision Associated Resources: Accuracy & Precision Handout Exercice #1: Two students weigh a powdered metal, 1: Wo students weigh a powdered metal and report the results of their multiple trials below. The exact (true/accepted) value for this mass is 8.72 9. Student #1: 8.72 g: 8.74 g: 8.70 g Student #2:8.50 g: 8.48 g: 8.519 a) Calculate the average mass from each set of data Average Set 1: _ Average Set 2:...
Determine the precision and accuracy of these data for dioxin. Sample 1 Sample 2 Sample 3 21.6 78.3 271 Known concentration (ng/mL): 32.9 72.7 283 18.0 58.9 263 71.5 241 Experimentally determined values (ng/mL): 23.3 20.1 90.8 287 20.0 70.4 233 24.2 73.5 259 Sample 1 precision (relative standard deviation): % Sample 1 accuracy (relative error): % Sample 2 precision (relative standard deviation): % Sample 2 accuracy (relative error): % Sample 3 precision (relative standard deviation): % Enter numeric value...
Determine the precision and accuracy of these data for dioxin. Sample 1 Sample 2 Sample 3 25.8 ng/mL 81.8 ng/mL 265 ng/mL Known concentratio 37.1 22.2 27.5 24.3 24.2 28.4 76.2 62.4 75.0 94.3 73.9 77.0 273 257 235 281 227 253 Experimentally determined values (ng/mL) Sample 1 Precision (Rel Std Deviation) Number Sample 2 Precision (Rel Std Deviation) Sample 3 Precision (Rel Std Deviation) Number Number Sample 1 Accuracy Relative Error Sample 2 Accuracy (Relative Error) Sample 3 Accuracy...
Which sequence of conditions best accomplishes the transformation below? Br steps Select one: O a. i) Mg; ii) CO2; iii) ETOH, H, heat o b.i) Mg; ii) SOCI; iii) EtOH, pyridine O c. i) CO2; ii) EtOH, H+ O d. i) Na2Cr207, H2SO4; ii) SOCI; ii) EtOH, pyridine
Which of the following scenarios describes scarcity at a pizza shop? Select the best answer. Answer 2 Points O There are 7 slices of deluxe pizza available, and 3 people want a deluxe slice There are 12 slices of Hawaiian pizza available, and 10 people want a Hawaiian slice. There are 16 slices of pepperoni pizza available, and 18 people want a pepperoni slice.
D Question 1 Select the best description for the symbols βί and β0 in a lnear model ßi is the population intercept and β0 is the population slope respectively βί is the sample intercept and β0 is the sample slope respectively. B is the population slope and Bo is the population intercept respectively β1 is the sample slope and β0 is the sample intercept respectively. o ๏ DQuestion 2 Select the best representation of the population regression line.
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