The p-value depends on the sample size, the test statistic and the spread (usually standard deviation) of the samples. Let’s return to the example above. Our null hypothesis is: “The mean module mark ...

Key Points Hypothesis testing provides organizations with a structured approach to evaluate assumptions using data, reducing ...

Confidence intervals and hypothesis tests are directly linked ... Here's another distinction between what a p-value and CI tells us: a p-value answers the question "How surprising is my sample?" The ...

What exactly is an Anderson-Darling test? Testing for normality is often the first step in analyzing your data. Many ...

Successful completion of this course demonstrate your achievement of the following learning outcomes for the MS-DS program: Define a composite hypothesis and the level of significance for a test with ...

To access this Analyst sample data set, follow these steps: The test of interest is whether the difference of the means is zero. This is the default value in Analyst ... the difference specified in ...