Lab 8 Rehearse 2

Posit Cloud Workspace

Log into your Posit Cloud account.
Open the Lab 8 Data Project.
Open the Lab8-Rehearse2-Worksheet.Rmd.

Note that you will do all your work for this Rehearse in the Lab-8-Rehearse 2 worksheet, so click on that to open it in the Editor window in your Posit Cloud Lab 8 Data Project workspace.

Requirements

In this Lab 8 Rehearse 2 you will continue work on your Personal Data Project:

Load the data into your Posit Cloud/RStudio Desktop work space.
Restate your research question/hypothesis.
Restate your Null and Alternative hypotheses.
State the type of inference test you will use to answer the research question.
Using code copied/edited from an appropriate example, complete the 5 analysis steps of the Downey-Infer inference process.
State the results of the inference analysis and your conclusions about your research question/hypothesis.
If appropriate for your method of analysis, use a confidence interval that will answer the research question.
Using code copied/edited from an appropriate example, complete a traditional inference test.

Analysis

Load Packages

CC1

library(tidyverse)
library(infer)

Load the data

CC2

# paste code here

State your research question/hypothesis.

Your response here:

State the Null and Alternative hypotheses

Null hypothesis Ho:

Alternative hypothesis Ha:

Type of Analysis

What type of inference analysis is appropriate for your data and research question.

Your answer here:

Test the hypothesis - Downey Method

Step 1: Calculate the observed statistic `delta_obs`

CC3

# paste code here:

Step 2: Generate the Null Distribution

CC4

# paste code here:

Step 3: Visualize the Null Distribution and the `delta_obs`

CC5

# paste code here:

Step 4: Calculate the p-value

CC6

# paste code here:

Step 5: Decide if delta_obs is statistically significant

CC7

# paste code here:

Results and Conclusions

Your comments here:

Calculate confidence interval

If a confidence interval is not appropriate, so state. Your comment here:

CC8

# paste code here:

Traditional hypothesis test

CC9

# paste code here:

Comment on the comparison of the Downey-Infer results and those of the traditional method.

Your comments here:

Lab Assignment Submission

Important

Submit your Lab 8 Rehearse 2 worksheet knitted as a Word or PDF file in your M8.3 Lab 8 Rehearse(s): Personal Data Project Canvas Assignment area. If you cannot knit your document successfully, submit the .Rmd document for partial credit.