Interpretation As a rule of thumb, we reject the null hypothesis if p < 0.05. We just found that p = 0.73 so we don't reject our null hypothesis: given our sample data, the population mean being 100 is a credible statement. So precisely what does p = 0.73 mean? Well, it means the...
Example of a one-tailed 1-sample t-test Suppose we perform a one-tailed 1-sample t-test. We’ll use a similar scenario as before where we compare the mean strength of parts from a supplier (102) to a target value (100). Imagine that we are considering a new parts supplier. We wil...
Upon supplying a blood sample, specimens are processed at a central lab. Statistical Analyses Statistical analyses followed the Consolidated Standards of Reporting Trials (CONSORT) guidelines for randomized trials. Data were analyzed using SPSS version 24. Sample data at baseline overall and separately ...
Individuals with known chronic illnesses, disabilities, or other medical conditions that might influence physical activity levels were excluded to maintain a focus on a healthy sample. Each response was checked for completeness, and any participants who left survey questions unanswered were removed to ...
or other medical conditions that might influence physical activity levels were excluded to maintain a focus on a healthy sample. Each response was checked for completeness, and any participants who left survey questions unanswered were removed to ensure data integrity and consistency. Additionally, respo...
34 All statistic tests were performed at a two-tailed α- level of 0.05 using GraphPad Prism v9 or IBM® SPSS® Statistics v26 for MacOS. Results Cohort of prior SARS-CoV-2-infected HCWs Of 79 HCWs that suffered from mild to moderate COVID-19 one year ago, 20 HCWs did not ...
Role of the Funder/Sponsor: The funding sources had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication. References 1. World...
(Z = 2.1,p = 0.04; related sample Wilcoxon’s test), indicating an overall weak attraction of females to lanierone in this bioassay. When beetles were presented with a choice between aggregation pheromone (10%, added to SBA plug) and the pheromone in combination with different ...
The response at T3 was relatively low, and, compared to the UPE-group, the proportion of nursing students in the IPE-group was bigger at T3. Although the sample size was adequate, this could have influenced the results. Future research with larger sample sizes could find significant ...
The hypothesis tests can be one-tailed or two-tailed, there is no statistical way to differentiate between one tail and another, only with the interpretation of the problem we will know which tail to use to carry out the appropriate test....