, accuracy - ANSWER-closeness of the mean to the "true value"
precision - ANSWER-reproducibility of individual measurements
Uncertainty in Addition/Subraction - ANSWER-e=sqrt(ex1^2+ex2^2+ex3^2+...)
Uncertainty in Multiplication/Division -
ANSWER-e=y*sqrt((ex1/x1)^2+(ex2/x2)^2+(ex3/x3)^2+...)
T-test case 1 equation - ANSWER-true value= mean (+-) (time*standard
deviation)/sqrt(number of measurements))
T-test case 1 Tcalc= - ANSWER-(sqrt(n)Iknown value-calculated meanI)/standard
deviation
For Case 1:
If Tcalc>Ttable - ANSWER-the actual value isn't in the range and it is bad
For Case 1:
If Tcalc<Ttable - ANSWER-the actual value is close to our calculated value
For Case 2:
you need to first solve for Fcalc= - ANSWER-(larger standard deviation)^2/(smaller
standard deviation)^2
Significant Figures in Logarithms and antilogarithms - ANSWER-the number of
significant figures in the log should equal the number of digits in the mantissa
How many significant figures in log(205.5) - ANSWER-four significant figures, so you
will need four decimal places in your answer
pH - ANSWER--log[H3O+]
[H3O+] - ANSWER-10^-pH
Absorbance - ANSWER--log(transmittance)
Random Error - ANSWER--repeated measurements are sometimes high and
sometimes low
-cannot be corrected for
Systematic Error - ANSWER--repeated measurements are usually always high or
always low
-can and should be corrected for
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller NursingTutor1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
