Homework Answers
● Accuracy is defined as the extent of closeness towards the true value.
● Precision is simply understood as the repetition of measured value or closeness to next measured value.
Hence, An instrument is precise if it's successive readings are close to one another .
● Standard Deviation shows the deviation or difference of average value from each other.
A) Since the Instrument 2 is more close to the True Value. Hence, Instrument 2 is more Accurate.
B) since the Standard Deviation of Instrument 2 is less.
This simply implies that Instrument 2 has very lesser deviation from its average value while Instrument 1 has greater Standard deviation which simply means that Instrument 1 has Greater Deviation from its average value.
Thus by definition, we can say that Instrument 2 is more precise.
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please help with no 3,4,5 and 6 Thanks 1. What is standard error? Measure of statistical...
please help with no 3,4,5 and 6
Thanks
1. What is standard error? Measure of statistical accuracy of an estimate, equal to the standard deviation of the theorental distribution of a large populanon of such estimates 2. What calculation is used to describe the variation in measurements. 3. In experiment 3.2. You will be measuring out 40ml of volume. How many times will you measure 40 ml? 4. What is the difference for each time you measure out 40ml? In...
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Need help with 1: b, c, d, e and f. And 2. Thanks! PRE-LAB EXERCISES average...
Need help with 1: b, c, d, e and f. And 2. Thanks!
PRE-LAB EXERCISES average size. If d is the diameter in millimeters, some pebbles will be bigger and some smaller than the desired average do. Suppose you have a rock crusher. The pebbles it makes have different sizes, but you can adjust the 1. (a) In the histogram below, about how many pebbles are shown to have diameter of greater 150 100 (b) In this distribution (same histogram,)...
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please answer all of the following much appreciated!! Question 8 Given the following 2 sets of...
please answer all of the following much appreciated!!
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I need help filling out the “Q-Test Determination” as well as the “Post-Lab Questions” The directions are in the first three pictures, and the questions I need answered are in the last two pictures....
I need help filling out the “Q-Test Determination” as well as
the “Post-Lab Questions”
The directions are in the first three pictures, and the
questions I need answered are in the last two pictures.
Thanks.
O-Test Datum Rejection We may be in a situation where one data value apparently has a strong influence on the mean of a set of data Assume we have 6 data points to analyze to be sure that each point is a viable part of...
tafp 150 quiz 3 Viscosity does not change with temperature. A. true B false 2. The...
tafp 150 quiz 3
Viscosity does not change with temperature. A. true B false 2. The primary function of the liquid in hydraulic system is to A. clean system parts B. remove heat from the system C. transmit energy to do the work the system is designed to D. prevent rust and corrosion of system components 3. The amount of friction is constant, even with varying forces pu the surfaces together. A true B. false 4. The cleanliness of the...
Charles' Law 1. L 94.0 LOO. mm the length of the original tube 2. Tube diameter...
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only one problem (Exercise 1-11 only) Uncertainties in Measurement and Propagation of Errors one measurement is...
only one problem (Exercise 1-11 only)
Uncertainties in Measurement and Propagation of Errors one measurement is made and often the peecision of the instrument is used as arn mate of the uncertainty. the instrument and the situation, the uncertainty Depending upon could be less than the precision of the instrument or it could be more. For example, in measuring we may estimate the distance between the small est subdivision (mm) if we rurn the meter stick onto its side to...
please help with no 3,4,5 and 6
Thanks
1. What is standard error? Measure of statistical accuracy of an estimate, equal to the standard deviation of the theorental distribution of a large populanon of such estimates 2. What calculation is used to describe the variation in measurements. 3. In experiment 3.2. You will be measuring out 40ml of volume. How many times will you measure 40 ml? 4. What is the difference for each time you measure out 40ml? In...
Need help with 1: b, c, d, e and f. And 2. Thanks!
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please answer all of the following much appreciated!!
Question 8 Given the following 2 sets of data, what would the degrees of freedom be for an independent measures t-test? 12, 4, 9, 0, 1,5 2, 4, 8, 16,3 Question 9 4 points Save Answer Shannon Louise wants to see if dunking your face in cold water before a test causes a difference in test scores. She samples two groups, where one group will dunk their face into water before beginning...
I need help filling out the “Q-Test Determination” as well as
the “Post-Lab Questions”
The directions are in the first three pictures, and the
questions I need answered are in the last two pictures.
Thanks.
O-Test Datum Rejection We may be in a situation where one data value apparently has a strong influence on the mean of a set of data Assume we have 6 data points to analyze to be sure that each point is a viable part of...
tafp 150 quiz 3
Viscosity does not change with temperature. A. true B false 2. The primary function of the liquid in hydraulic system is to A. clean system parts B. remove heat from the system C. transmit energy to do the work the system is designed to D. prevent rust and corrosion of system components 3. The amount of friction is constant, even with varying forces pu the surfaces together. A true B. false 4. The cleanliness of the...
Charles' Law 1. L 94.0 LOO. mm the length of the original tube 2. Tube diameter = mm radius = dia/2 = mm 3. V V(oil bath) = mm Show calculation for the tube volume here: 4. T (oil bath) °C K -96.5 -75.0 5. L2, L (room temp) mm 6. V2, V(room temp) mm 3 23.80 7. T2, T (room temp) for K 8. T /T2 - for °C ΤΙΤ, τη for K 9. V / V2 = 10....
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