# Search results

1. ### Appropriate Stats tests

If you want to test the impact of training of staff then two groups needed in this case Tylenol with training given to staff Tylenol without training given to staff
2. ### Correct model for outcome variable with 4 categories

You can try with partial proportional odds model
3. ### Which statistical tests should be performed?

You need to use repeated measures ANOVA
4. ### Book/Website Recommendation

You can check the following book which covers Statistical Methods and R Introduction to Statistical Methods ISBN - 9798629947158
5. ### Bayesian Methodology: An overview with the help of R software...

Bayesian Methodology: An overview with the help of R software https://www.amazon.com/dp/B07QCHTR54 ISBN-13: 978-1092939898
6. ### HYPOTHESIS TESTING

it is not about the end or middle of the curve. The probability value is proportional to the area under curve
7. ### Hierarchical linear model/ Regression Analysis

You can use HLM for the type of data you specified in your question. You can also refer the following paper on HLM Woltman, Heather, et al. "An introduction to hierarchical linear modeling." Tutorials in Quantitative Methods for Psychology8.1 (2012): 52-69. Editor ISJMI
8. ### How can I find an interval estimate for the mean of a Weibull distribution?

You can refer the following papers and books Yuan, F. (2018). Parameter estimation for bivariate Weibull distribution using generalized moment method for reliability evaluation. Quality and Reliability Engineering International, 34(4), 631-640. Rinne, H. (2008). The Weibull distribution: a...
9. ### Reporting ordinal regression results

1. You can use coefficients from the model to show which group of variables predicts the variable Usually the results of the ordinal regression model output is difficult to interpret as it involves logit (log of odds). If the dependent variable involves 5 levels then you will have 4 logits to...