I The difference in standard deviations for the two instrumerntal methods is significant. II The difference in standard deviations for the two instrumental methods is not significant. III The data comes from popufations with the same standard deviation. IV The data does not come from populations with the same standard deviation.

I The difference in standard deviations for the two instrumerntal methods is significant. II The difference in standard deviations for the two instrumental methods is not significant. III The data comes from popufations with the same standard deviation. IV The data does not come from populations with the same standard deviation.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

I need help with calculating the standard deviations and percent error- (experimental-theoretical/theoretical)*100.The theoretical values for the unknowns are water- 1.00g/mL, ethyl alcohol- 0.79g/mL and glycerol - 1.26g/mL. The down arrows mean the number is the same for that column
Find the result (c) and the absolute standard deviation (sc) as propagated in the following calculation. Express final result and its propagated standard deviation with an appropriate number of significant figures. a = 5.75 (+0.05)+0.833 (±0.001); b = 3.75 (±0.02);c = alb
What is the relative average deviation in the following percent KHP values in ppt? 46.80% 47.23% 48.03%
If it was discovered that a polyaromatic hydrocarbon (PAH) having a density of 1 g/cm3 has a concentration of 1 ppm in the soil, how much soil would be required if a standard deviation of 0.1 is desired for the fundamental sampling error?
How would you calculate Standard Deviation?
An ore sample was analyzed for its Fe content. Student A analyzed the sample a total of six times and her results had a standard deviation of 1.33. The same sample was analyzed five times by Student B and his results had a standard deviation of 3.42. To determine if their standard deviations are similar, they perform an F test. The calculated F value is and the table value of Fis 3 in your book for critical values of F. O 6.61; 7.39 O 6.61; 9.36 O 0.151; 9.36 O 2.57; 7.39 O 6.61; 6.98 Refer to Table 4-
The results obtained by two analysts for the lead content of samples obtained at different certified points in Rustenburg are as follows: Analyst 1 – 79.22, 79.41,79.66, 79.45 Analyst 2 – 79.09, 79.08, 79.25, 79.13, 79.10, 79.19 Using the equation, calculate the following 1.the standard deviations 2 .the mean values of the two sets of data and 3. s-pooled
Please show a detailed solution. Thank you
Q5. Two methods were used to measure fluorescence lifetime of a dye. The average result for Method 1 is = 1.382 ns with a standard deviation of s1 = 0.039 and n1= 7. The average result for Method 2 is = 1.346 ns with a standard deviation of s2 = 0.015 and n2= 5. Is there a difference between the two methods at the 95% confidence level using F test?
Calculate the sample standard deviation, s, for this set of data: 4.5, 6.7, 4.2, 9.6, 3.4, 8.2 Report your answer to the fourth decimal place.
Calculate the sample standard deviation, s, for this set of data: 1.9, 1.5, 6.0, 2.0, 1.4, 1.2 Report your answer to the fourth decimal place.
You are developing a Ca detection method for a graphite furnace AA instrument. Your analysis of ten blank samples gives a standard deviation of 0.265 ppb. To establish your limit of detection (LOD), what concentration of Ca should be spiked into your blanks?