Lab 3A

Directions: Follow along with the slides and answer the questions in **red** font in your journal.

- Previously in class, you conducted an experiment to gauge how a stimulus affected people’s perception of time.
- Some people were given a treatment, others were not.

- In this lab, we’ll use the data cycle to analyze the
*research question*:

*Does the stimulus your class chose change people’s perception of time?*

**Write down two statistical questions that will help you answer the***research question*from the previous slide.- Then,
*export*,*upload*,*import*your experiment data into RStudio.- If you’re having trouble coming up with good statistical questions, try loading the data and looking at the variables.
- Ask yourself,
*How would I use these variables to answer the research question?*

- Create appropriate plots to answer your statistical questions.
**Are there any outliers or unusual observations that require some cleaning before you can interpret your plots?**

- Calculate appropriate numerical summaries to answer your statistical questions.
- Interpret your plots and summaries.
**Write down a few sentences with your interpretations.**

- Is it possible your initial results occurred by chance alone?
**Use repeated shuffling to determine how likely the typical difference between the two groups occurred by chance alone.****Create a plot and use it to justify your answer.**

- What do you conclude about the
*research question*?**Write a report using the plots and analysis you conducted to answer the***research question*.- Be sure to describe how you conducted your experiment.