Publications by Mr. Hern
Homework 4.3
Agoraphobia: Questions 1 - 8 I created an agoraphobia dataset mirroring that in the homework to enable the use of R to respond to the questions. No further preparation was required. agoraphobia <- read.csv("/cloud/project/HomeworkData/agoraphobia.csv") Question 1 - 3 What is the average difference score for this study? (difference = trips after tr...
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Lab 2.3 Key
In this lab, we use the AnimalData dataset to explore visualization tools to aid in describing data distributions; specifically, we examine data about the shelter dogs and cats for the purpose of making comparisons, and address the following lab question: Lab Question How do the lengths of time to be adopted compare for a cat and a dog at the Aust...
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Lab 2.1 Key
In this lab, we use the AnimalData dataset to explore visualization tools to aid in describing data distributions; specifically, we examine data about the shelter dogs and cats for the purpose of making comparisons, and address the following lab question: Lab Question Compare the weight of adult cats and dogs at the shelter. Which type of animal h...
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R Homework 4
In this R homework assignment, we use the KarloffU dataset to further explore the process of statistical inference and hypothesis testing. The two research questions will give us opportunities to stretch our understanding of the applicability of the one-sample t-test and to extend our R skills in handling a slightly more complex data scenario. Res...
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Level 2 Lab 4.3
In this lab, we use the BullRider dataset to continue to explore the process of statistical inference and hypothesis testing; specifically whether the point totals for individual riders in two seasons differed. We will again have the opportunity to create a calculated difference field to use for paired t-testing. Research Question Did bullriders h...
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Lab 4.3 Key
In this lab, we use the PostSurvey dataset to explore the process of two-sample t-testing in the context of statistical inference and hypothesis testing; specifically, we examine data about homework/study time in college vs. high school. Lab Question Do students at UT spend a different amount of time on homework per week in college from what they...
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R Homework 1 Key
In this R homework assignment, we use the KarloffU dataset to create subsets to enable basic quantitative queries. Preparation Our first step will be to import the KarloffU.csv and name it “ku.” All our subsequent analysis will use ku as a base. ku <- read.csv("/cloud/project/OnRamps Data/KarloffU.csv") #View(ku) Research Question Create simp...
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R Homework 2 Key
In this R homework assignment, we use the KarloffU dataset to analyze various subsets of data and identify the distribution type for specific variables. Preparation Our first step will be to import the KarloffU.csv and name it “ku.” Research Question 1 Analyze distribution characteristics of subsets of students at KarloffU’s health clinic b...
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Level 2 Lab 2.1 Key
In this lab, we use the Animal dataset to explore ways to visualize, describe, and compare data distributions; specifically, how we can compare these measures across distributions that may or may not be similar. Research Question How do the distributions of ages of intake compare for animals that were brought in in ‘normal’ condition vs. thos...
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Level 2 Lab 2.3 Key
In this lab, we use the BikeData dataset to continue to explore the measures of center and spread for data distributions; specifically, how we can compare these measures across distributions that may or may not be similar. Research Question How do the distributions of speeds achieved compare for riders under 35 and those 35 and over? Based on this...
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