Question about Office Equipment & Supplies
Posted by Anonymous on
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Posted on Jan 02, 2017
Hello, this is a project that you have been set to achieve. We are not here to do your homework, you have to study this subject and make your own decisions, that's what study is all about, getting you educated and earning the certificate of proficiency in your chosen subject.
For any of us who have made it in the world to answer this question on your behalf would be unfair to your lecturer or teacher in awarding marks to you for our work.This is cheating! Surely you would want to honestly earn your merit rather than be a sham in life.
Contact your teacher fo help if you don't fully understand how to work this through.
Now please honestly rate our advice to keep us in work doing what we have earned the right to do++++Thanks for using FIXYA
Posted on Sep 13, 2009
OK, you convinced me to do your homework for you.
Before doing statistics, you have to prepare the calculator by clearing old data that may generate errors.
A. To clear old data
To obtain the correlation coefficient in a statistical analysis on the TI8xPlus family of calculators you must activate the DiagnosticsOn option. To access the command
D. Enter the data
Type in the X values in L1 and the Y values in L2 (see picture 1)
To obtain the statistical results
Notice the down arrow next to n=7. That means the results screen has more values. Press the down arrow to display.
You notice that the n=7 line now has an arrow pointing Up. Notice the Down Arrow on the bottom line (more data is coming). Here is the rest of the statistical results.
There is no arrow at the bottom of the picture. End of statistical results.
The screen captures with 2-Var Stats summarize all the satistics. Some of the values your are looking for are among the result. NOW it is you mission to identify what you need (I chewed all the work for you).
However there is no correlation coefficient, no line of best fit, etc. To obtain that you have to perform a regression analysis.
Perform a Regression analysis
To perform a regression analysis, you must try several regression models and then find the one that mimicks the raw data best. In this particular case, you have already decided to do a linear regression, and that is good for me. I do not have the time to take you through all of them. A linear regression it will be.
The slope is a and the y-intercept is b. You also have r and its square. You need to read your theory to know which of the two correlation coefficients you have been asked to obtain.
Since you saved the equation in the Y1 function you can draw it. You just have to press GRAPH and it will be drawn. But that will not tell how good the fit is, until you see the function drawn on top of the raw data.
Drawing the scatter plot and the raw data on the same screen.
Regardless of the curve of best fit, you can draw a scatter plot as follows.
Here plot1 is active (ON), it is scatter plot (first icon) the Xlist is L1 by default but you can change it to some other list. Notice the highlighted A cursor on XLIST line. It means that the [ALPHA] keyboard is active.
On the line Mark you can choose the appearnce of the raw data point.
And here is your two graphs: the raw data scatter plot and the line of best fit on the same screen
Now, it is up to you to accept this model or to try another model.
Posted on Jan 21, 2010
8% =8/100 =0.08
Your question is not clear so I have to consider the two possibilities.
A. First case
2553.12 is the taxless price (may not be your actual case)
Simple tax (to be) paid =2553.12*0.08=204.25
B Second case:
2553.12 is the total price (including the tax) and you want to find out the tax that was paid on it.
In this case 2553.12 is (1+0.08) the sale price
The tax-less price is given by
and the tax paid is 2553.12-2364.00=189.12
Examine the two cases and find the one that corresponds to your situation. Whichever it may be, your solution is here.
Posted on Mar 19, 2010
SOURCE: Tax Rate....no manual
You can download the manual from the manufacturer's web site at
Posted on Aug 02, 2010
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