The single sample t-test is used to compare the sample mean from one sample to a given population mean. The purpose of this test is to determine if the sample is drawn from (or different from) the given population.
Null: The sample mean is not significantly different from the population mean.
Alternative: The sample mean is significantly different from the population mean.
When reporting the results of the single-sample t-test, APA Style has very specific requirements on what information should be included. Below is the key information required for reporting the results of the. You want to replace the red text with the appropriate values from your output.
t(degrees of freedom) = the t statistic, p = p value.
A single-sample t-test was run to determine if the current freshman class's performance on the exam was different than previous students' performance. The results showed that the current freshmen's performance (M = 83, SD = 4.2) was not significantly different from the existing average (t(34) = 1.03, p = .231).