A researcher wants to test whether a new type of exercise equipment improves the strength of participants. To test this, they recruit 12 participants and measure their strength using a standardized test. The participants then use the new exercise equipment for 4 weeks, after which their strength is measured again using the same test. The researcher finds that 8 of the participants showed an increase in strength compared to their baseline measurement. Critical value: Alpha = .05, 2 and 10.