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A: GivenNo of times measured = N = 16Standard deviation = S.D. = 0.24Standard deviation of the mean is…
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A: When we obtain data which is highly scattered, the analytical tool we can use standard deviation.
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A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: standard deviation
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Q: he most convenient way of expressing the random error, regardless of the concentration or weight of…
A: The most convenient way of expressing the random error, regardless of the concentration or weight of…
Q: if you know the standard deviation = 3 for measured data, what is the variance?
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Q: Q2/ The average teacher's salary in a particular state is 54166. If the standard deviation is 10200,…
A: Solution - According to the question - Given - Solution:Given that mean = 54166, sd = 10200 Z =…
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A: Average value and standard deviation given below.
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Q: How do you find the standard deviation with these calculations?
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A: Note: Since you have posted question with multiple parts, we will solve only first part for you. To…
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A: The average mass is equal to the sum of all mass divided by the total number of masses.
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Q: Use a spreadsheet to calculate the mean and standard deviation of the data set. 54.99, 54.40, 54.60,…
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Q: standard deviation, and relative standard deviation.
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Q: If the actual value is 100 and the measured value is 99 then the percent error is---- O 0.1 O 2% O…
A: We can calculate percent error by following formula percent error=Actual value-Measured vaueactual…
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Q: A method of analysis yields masses of gold that are low by 0.4 mg. Calculate the percent relative…
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
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Q: Which is true for standard deviation (s) for a sample size (n)? A The greater the n, the smaller the…
A: Standard deviations decreases, with the increase in the sample size.
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A: The student performed the experiment three times with a standard deviation of 0.353 g/mL. The…
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Q: In a particular trial, a student got a value for R of 0.083. Calculate the percent deviation of this…
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A: Given: The given data is:
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A: A question based on tools in analytical chemistry that is to be accomplished.
Q: Calculate the standard deviation of the following results: 20,19,18,10,15,14
A:
Increasing the number of measurements will
- decrease the standard deviation
- increase the systematic error
- increase the random error
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- A chemist obtained the following data for percent lindane in the triplicate analysis of an insecticide preparation: 7.23, 6.95, and 7.53%. Calculate the 90% confidence interval for the mean of the the three data, assuming that (a) the only information about the precision of the method is the precision for the three data. (b) on the basis of long experience with the method, it is believed that s---->σ lindane. (c) If s=0.28 is good estimate of σ, how many replicate measurement should be made in order for the mean for the analysis of sample to be within 0.2% of the true mean 90% of the time.3. a. Briefly explain why internal standardization method is useful inanalytical chemistry?b. Why does a response factor of an instrument’s detector need to becalculated?In the determination of ethanol concentration in alcoholic beverages using the GCFID method, why do we need to calculate the coefficient variation (CV). standard deviation, repeatability, response factor and response ratio? And how to calculate this parameter?
- I have struggled to get the answer. A classmate said it was 159, though I would like to see the steps in demensional analysis, with correct sig figs. thank you! Provide only typed solution answer no handwritten solution neededHello! I need a brief explanation for this question attached. The data that includes in question should be used in a meaningful way. Thank you!A young researcher was evaluating a standard method for determining the methylmercury content in blue fin tuna using high performance liquid chromatography (HPLC). She determined the standard deviation (?)(s) for the method to be 0.440.44 ppb and assumed that ?s was a good approximation of ?σ . As a test, she used this method to evaluate the methylmercury content in a National Institutes of Standards and Technology (NIST) standard and determined the unknown amount to be within 0.210.21 ppb (?)(μ) of the known mean with 99% probability. How many replicate measurements of the NIST standard did the researcher perform?
- pls, what would the answersCan you please fill the rest of tghe data based on the on inforamtion you have and answer Average percent by mass of acetic acid in vinegar sample (%) ________________ Standard deviation of percent by mass of acetic acid in vinegar sample (%)Using the raw data, pls fill the table accordingly. I will thumbs up if done properly.
