01-13-2010, 07:48 PM
Hi,
I passed the dantes exam: "Principles of Statistics" today with a 453. Here are some things I learned after completing the test:
As far as resources go, I used the "Against all Odds" free online videos to help become familiar with Statistics. Then, I used IC and "Introduction to the Basics of Statistics" (which is the book the test is based off of). These were really good study materials to use - I would recommend them.
The test itself: It is important to know concepts as well as problem-solving (as some of the other Statistics takers have said). I found the test to give a lot of questions about concepts; such as what type of test would you use in "blank" situation, or what type of test is used to solve "blank" (ie Anova you use primarily to test 2+ samples). Know about the Null Hypothesis and p-values, they will come up. If you are familiar with Chi-Square tests, Anova, and F-Statistic, you will use them some and it helps to narrow down the answers. A couple questions dealt with cumulative frequency graphs, so knowing how to work these will help. You don't need to use tables, but knowing that a 95% confidence interval makes a z* of 1.96, and a 99% confidence interval makes a z* of 2.64 is something I would recommend knowing (it will save you time).
The types of formulas I would recommend knowing (most of which I wrote down when I walked into the testing center) are the following:
Standard Deviation - part of the test stresses this
Mean, Median, Mode
Standard Error - I had a lot of questions with this formula
t-statistic for sample means - I also had one question where I used the two-sample mean
Confidence intervals for one sample mean (z and t statistic) - although just being familiar with using confidence intervals is enough
Binomial Distribution formula - I had one question where I used this
Slope of a regression line (both formulas)
Intercept of a regression line - the test will stress some of just knowing how a regression line works and being able to put one together
The test has a nice curve to it; so (at least I found) it grades you higher than you expect. There are 97 questions for a 2 hour time period (there are really "101" questions, but the first four are tables). As long as you are familar with the different areas and know some formulas (and are able to plug in numbers) you will do really well. I found this test to be one of my more fun tests to take, so have fun with it!! Good luck to whomever will take this test in the future!!
`Dakota
I passed the dantes exam: "Principles of Statistics" today with a 453. Here are some things I learned after completing the test:
As far as resources go, I used the "Against all Odds" free online videos to help become familiar with Statistics. Then, I used IC and "Introduction to the Basics of Statistics" (which is the book the test is based off of). These were really good study materials to use - I would recommend them.
The test itself: It is important to know concepts as well as problem-solving (as some of the other Statistics takers have said). I found the test to give a lot of questions about concepts; such as what type of test would you use in "blank" situation, or what type of test is used to solve "blank" (ie Anova you use primarily to test 2+ samples). Know about the Null Hypothesis and p-values, they will come up. If you are familiar with Chi-Square tests, Anova, and F-Statistic, you will use them some and it helps to narrow down the answers. A couple questions dealt with cumulative frequency graphs, so knowing how to work these will help. You don't need to use tables, but knowing that a 95% confidence interval makes a z* of 1.96, and a 99% confidence interval makes a z* of 2.64 is something I would recommend knowing (it will save you time).
The types of formulas I would recommend knowing (most of which I wrote down when I walked into the testing center) are the following:
Standard Deviation - part of the test stresses this
Mean, Median, Mode
Standard Error - I had a lot of questions with this formula
t-statistic for sample means - I also had one question where I used the two-sample mean
Confidence intervals for one sample mean (z and t statistic) - although just being familiar with using confidence intervals is enough
Binomial Distribution formula - I had one question where I used this
Slope of a regression line (both formulas)
Intercept of a regression line - the test will stress some of just knowing how a regression line works and being able to put one together
The test has a nice curve to it; so (at least I found) it grades you higher than you expect. There are 97 questions for a 2 hour time period (there are really "101" questions, but the first four are tables). As long as you are familar with the different areas and know some formulas (and are able to plug in numbers) you will do really well. I found this test to be one of my more fun tests to take, so have fun with it!! Good luck to whomever will take this test in the future!!
`Dakota
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