Question

Define precision and accuracy. Are the two dependent upon each other? Do you want your data...

Define precision and accuracy. Are the two dependent upon each other? Do you want your data to be precise, accurate, or both? Justify your response. Lastly, explain how precision within a data set is accounted for/represented in statistics

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Precision is defined as the closeness of the estimates from different samples. For example, if you consistently measure your height as 5 feet with a yardstick, your measurement is precise.

Accuracy is defined as the closeness of an estimate to the true value. Suppose you know your true height is 5 feet. You measure yourself with a yardstick and get 5 feet. Your measurement is accurate. You measure yourself and get 6 feet. Your measurement is not accurate.

We want the data to be both precise and accurate, because data without precision will have large variation which is not desired and inaccurate data will lead to wrong results.

Precision is accounted for/ represented in statistics by standard deviation. Precision is the inverse of standard deviation.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
For my Healthcare Statistics class....Consider two different data sets and then for each data set, propose...
For my Healthcare Statistics class....Consider two different data sets and then for each data set, propose your idea of what graph would best represent the key information. For each, be sure to include the type of graph along with what would be shown on each axis. The key data in the first data set is a list of all the injuries that a clinic saw in a month. The other data set has key data on the number of minutes...
a) You want light at wavelength 527 nm in air to be eliminated by interference upon...
a) You want light at wavelength 527 nm in air to be eliminated by interference upon reflection from a piece of glass coated with a thin film of a transparent substance. For the glass n = 1.53, and for the film n = 1.23. What is the smallest thickness the coating can have? Express your answer in nm (nanometers). b) Consider a Young’s double-slit experiment. Suppose the slits are separated by 14.2 μm, and each slit is 2.9 μm wide....
II. I want you to make up a research project that you would like to do....
II. I want you to make up a research project that you would like to do. You will be guided through a step by step process of giving me all of the necessary information for a research plan. Be careful to answer each question completely using what you have learned about research design. You have decided to do a research project. A. Describe your project. What is your purpose, what question or questions are you trying to answer. B. What...
A. If you have two objects with different masses hit each other the force between them...
A. If you have two objects with different masses hit each other the force between them will be the same or different when they hit. Explain B. If you have two vectors and you want to get the sum of these vectors. How many ways you could do that, explain your answer in more details, don't just give a numbe
Two sample Dependent t-test (or Paired t-test) You want to test your hypothesis below: There is...
Two sample Dependent t-test (or Paired t-test) You want to test your hypothesis below: There is a difference in mean test scores between Exam 1 and Exam 2             Provide your answers in the template below the data set. Exam 1 Exam 2 17 19 18 20 16 22 18 24 12 10 20 25 18 20 20 22 20 21 22 23 20 20 10 10 8 12 12 14 16 12 16 20 18 22 20 24 18...
T-tests are used when you want to examine differences but you do not know everything about...
T-tests are used when you want to examine differences but you do not know everything about the population. There are three types of t-tests that you may choose to do: one-sample t-test, independent sample t-test, or dependent sample t-test. You can calculate these by hand, in SPSS, or in Excel. The instructions below can be used for SPSS and your textbook offers instructions for using Excel. Single-sample t-tests These tests are used when you want to determine the probability that...
Note that you must do this project on your own—you may not work with other students....
Note that you must do this project on your own—you may not work with other students. You are always welcome to ask your instructor for help. Visit the NASDAQ historical prices weblink. First, set the date range to be for exactly 1 year ending on the Monday that this course started. For example, if the current term started on April 1, 2018, then use April 1, 2017 – March 31, 2018. (Do NOT use these dates. Use the dates that...
determine if the following data collection processes will result in independent or dependent samples, explain your...
determine if the following data collection processes will result in independent or dependent samples, explain your answers. a. A television news magazine did a report that studied whether auto mechanics charge women more for repairs than they charge men. To gather data they took 10 cars and gave each car a set of problems. 10 women were sent to mechanics to obtain an estimate on the cost of repairs. 10 men then took the same 10 cars (changing license plates...
Give an example of two attitudes you hold that have an irrelevant relationship to each other....
Give an example of two attitudes you hold that have an irrelevant relationship to each other. Cite two consonant attitudes you hold. Do you have any attitudes that are dissonant with each other? If so, have you done anything about them? Explain how your actions fit with the theory.
Applying Simple Linear Regression to Your favorite Data (Please confirm with the instructor the dataset you...
Applying Simple Linear Regression to Your favorite Data (Please confirm with the instructor the dataset you find before you work on this question) Many dependent variables in business serve as the subjects of regression modeling efforts. We list such variables here: Rate of return of a stock Annual unemployment rate Grade point average of an accounting student Gross domestic product of a country Choose one of these dependent variables, or choose some other dependent variable, for which you want to...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT