Michael McIsaac

Lab 8: Simple linear regression. Exercise 2. Incomplete question.

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Exercise 2 of Lab 8 ([Simple linear regression](http://openintrostat.github.io/oilabs-tidy/08_simple_regression/simple_regression.html)) is incomplete. Students are asked to "select the six variables", but it isn't clear which 6 variables are meant. The provided solutions...

Pipe mismatch with tutorials

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The tutorials have been updated to use the native pipe, but the labs still use %>% This will confuse students that are using both the tutorials and labs.

The call to filter(scientist_work == "Doesn't benefit") is filtering out any replicates where there are no "Doesn't benefit"s in the small sample. As a result any replicates with p_hat=0 are...

Lab 6 Exercise 2 asks 2. What is the proportion of people who have texted while driving every day in the past 30 days and never wear helmets? However, the...

The Lab Report template provided in the openintro package has a sample code chunk for Exercise 1 and that code chunk has a label ("code-chunk-label"). Many of my students copy...

Many of my students had trouble running the labs that rely on Shiny apps (sampling distributions) because they could not stay connected to the shiny server. However, very little of...

Lab 05a_sampling_distributions: replicates filtered out in sample_props_small

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sample_props_small often has fewer than the requested 25 elements. The call to `filter(scientist_work == "Doesn't benefit")` is filtering out any replicates where there are no "Doesn't benefit"s in the small...