your score is above average, but if you really want to know where you are on the "curve," you should calculate your Z-score. This important statistics tool not only takes into account the average of all the test scores but also the variation in the results. To find the Z-score, you ...
In statistics, hypothesis tests enable you to gauge whether the results of a study, experiment, or survey have produced meaningful results. T-testsare of different types and can be used under different circumstances. If you need to compare a mean to a hypothesized value, you can use a simple...
Calculate the degrees of freedom for each of the independent samples. Degrees of freedom is usually represented by "n-1" or your sample size minus one. Write the degrees of freedom calculation in the summary statistics section. Step 3 Calculate the variance and standard deviation for each of t...
Standard score is a statistics term. The standard score shows how far away from the mean a score falls. It is also known as a z-score. Using a z-score table, you can find where the score falls on the table and figure out what percentile the score falls in. This is a way of stan...
Statistics Definitions> Stanine Score What is a Stanine Score? A stanine (“standard nine”) score is a way to scale scores on anine-point scale. It can be used to convert any test score to a single-digit score. Likez-scoresandt-scores, stanines are a way to assign a number to a ...
Method 2 – Using Sample Proportion to Calculate Margin of Error The dataset is divided into sample proportions of whether the children are vaccinated or not. We are going to calculate the margin of error in finding if a child is vaccinated or not. ...
When to use a t-score vs. z-score. The above chart is based on (from my experience), the “rule” you’re most likely to find in an elementary statistics class. That said,this is one of those rules that isn’t set in stone, so you should always check with your textbook/teac...
There's also a common trap where "significant" is used interchangeably with "important." While this might work in everyday conversation, in the realm of statistics, "significant" has a very specific meaning - it refers to the likelihood that a result is not due to random chance. That said...
The problem with Net Promoter is that the statistics that you normally use for survey scores don’t work so well for NPS. However, there is an approach that you can use to determine if the change is significant. This post “How can I calculate margin of error in a NPS result?” provid...
how a school's licensing exam scores compare with the MCAT scores of its incoming students. If a school's average MCAT score is significantly more impressive than its average licensing exam scores, that may indicate that a school's med students a...