Question

I have a statistics question if anyone can help me I will post if interested

Answer 1

sure, post away, will help if im able

Answer 2

You are part of a school and have to report the results of standardized test scores. Which measure of central tendency would you use? Assume that you don't know how your students will perform; so consider the general effects of outliers on the three measures of central tendency. Research and summarize the general effects that outliers have on each of the measures of central tendency. Then, using some real values, provide an example of how the three measures of central tendency vary due to outlier effects.
Recently, two new transfer students joined your school, and both have received extremely high scores on the test. Which measure of central tendency would you use, and why? Explain which measure you would use in this situation by using actual numbers to illustrate your point. Calculate all three measures of central tendency and depict what happens before and after the addition of the two transfer students.

Justify your answers with appropriate reasoning and research from your textbook and course readings. Start reviewing and responding to at least two of your classmates as early in the week as possible. You can ask technical questions or respond generally to the overall experience. Be honest, clear, and concise. Always use constructive language, even in criticism, to work toward the goal of positive progress. Using questions and seeking clarifications are good ways to make your reviews substantive!

Answer 3

whoa lassie.... now that's a question!

Answer 4

i know these kind of questions throw me off everytime

Answer 5

You are part of a school and have to report the results of standardized test scores. Which measure of central tendency would you use?
i guess mean, median and probably geometric mean.
I'm sure you understand each and therefore can write about the effects of central tendency and how each is affected by outliers, yes?

Answer 6

from here its all research, report writing, and example calculations, so best of luck.

Answer 7

the way that they are doing it which is throwing me off is they are doing an equation i am assuming they are using grades

Answer 8

exampleThe example below shows how each measure is affected by outliers:

o 80, 80, 81, 82, 83, 83, 83, 83, 84, 99

Answer 9

ok, so mean is sum of all/number of terms
do that for this, then take away either the 99 or the 0 and re-calculate the mean.

compare this to the original mean calculated.

Answer 10

0, 80, 80, 81, 82, 83, 83, 83, 83, 84, 99
so 11 terms
and sum = 838
mean average = 76.18

now without the 0 score
80, 80, 81, 82, 83, 83, 83, 83, 84, 99
so 10 terms
and sum = 838
mean average = 83.8

Answer 11

so the 0 outlier was draggin everyones mean average whay down, when the majority of students scored above 80, yet the average was below 77

Answer 12

do the same for the median average and the geometric average, and compare the results

Answer 13

i would assume I would use my own numbers there is not assigned numbers to do this would you automatically have two or three of the same numbers

Answer 14

not necessarily, but pick a fairly typical bell curve of the range of numbers if you're going to choose your own, maybe with a couple of extreme outliers so you can get a obvious feel for their effects on the averages