How to Find a Range Watch the video below for a brief overview or read on for more: Can’t see the video?Click hereto watch it on YouTube. Need helpwith a homework question?Check out our help page! Example question 1: What is the range for the following set of numbers? 10, 99, ...
These equations give you two values, or “fences“. You can think of them as a fence that cordons off the outliers from all of the values that are contained in the bulk of the data. Example question:Use Tukey’s method to find outliers for the following set of data: 1,2,5,6,7,...
In practice, the significance level is stated in advance to determine how small the p-value must be to reject the null hypothesis. Because different researchers use different levels of significance when examining a question, a reader may sometimes have difficulty comparing results from two different ...
At the heart of this question is the goal to confidently differentiate between groups, by describing meaningful differences as statistically significant.Statistical significanceisn’t a difficult concept, but it needs to be considered within the unique context of your research and your measures. First,...
Learn about factor analysis - a simple way to condense the data in many variables into a just a few variables.
Although “contextualization” is not a psychological construct in itself, different areas of psychology are relevant with regard to the question of how people put information in context when trying to make sense of the world. In the following section, we specify what this means by presenting exam...
What do you want to do with your data?Specifically, what's the business question you want to answer by learning from your past data? What are the requirements of your data science scenario?What are the features, accuracy, training time, linearity, and parameters that your solution supports?
Create a portfolio of your work Apply for entry-level data analyst jobs In this post, we’ll take a look at each of these points in more detail, giving you everything you need to know to get started on your journey to becoming a data analyst. You can find out about the top analytics...
Statistical analysis: What happened? Statistical analysis pulls past data to identify meaningful trends. Two primary categories of statistical analysis exist: descriptive and inferential. Descriptive analysis Descriptive analysis looks at numerical data and calculations to determine what happened in a busines...
Part two shows you how to find a sample size for a givenconfidence level and width(e.g. 95% CL, 6% wide) for anunknown population standard deviation. Example question: 41% of Jacksonville residents said that they had been in a hurricane. How many adults should be surveyed to estimate th...