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Frequently Asked Questions
  • Home
  • Contact Us
  • Online Course
    • 3D Printing Applications
    • Accounting: Principles of Financial Accounting
    • Amazon DynamoDB: Building NoSQL Database-Driven Applications
    • Analyzing Big Data with SQL Quiz Answer
    • Android App Components – Intents, Activities, and Broadcast Receivers
    • Android App Components – Services, Local IPC, and Content Providers
    • API Development on Google Cloud’s Apigee API Platform
    • Applied AI with DeepLearning
    • Artificial Intelligence
    • Big Data, Artificial Intelligence, and Ethics
    • Blockchain and Cryptocurrency Explained
    • Build Your First Android App Quiz (Project-Centered Course)
    • Career planning: resume/CV, cover letter, interview
    • Computer Architecture
    • Cost and Economics in Pricing Strategy
    • Customer Value in Pricing Strategy
  • All Assignments
    • Week 5 Assignments of Data Warehouse Concepts Design and Data Integration
    • Peer graded Assignment Personas Problem Scenarios and Propositions and User Stories
    • Peer-graded Assignment: Positioning Statement & Focal Questions
    • Peer-graded Assignment: Creating and Testing a Demand/Value Hypothesis
    • Supply Chain Logistics Week 4 Peer-Graded Assignment Image Link:
    • Week – 4 Peer-graded Assignment: Build a Logistics Network
    • Supply Chain Logistics Week 2 Peer-Graded Assignment Image
  • Free Course
    • The 48 Best Free Online Spanish Courses To Learn
    • 53 Best Free Anatomy And Physiology Online Accredited Courses In 2021
    • Free Certification Course By Academy Europe
    • Top Free Certification Course By Eduonix
    • Top Free Course On Data Science By Harvard
    • All Udemy Free Certification Courses
    • Top Stanford university Free Courses

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If we ran a regression analysis between two continuous variables amount of time spent running on a treadmill vs the amount of calories burnt. If I get a coefficient of 0.33 for the amount of time running on the treadmill and an R-square value of 0.81. What is the correlation coefficient?
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We run a regression analysis in place of a t-test to test if there is a difference in number of students enrolled in classes with professors who are native english speakers (English_speakers = 1) vs professors who are not (English_speakers = 0). The table is shown below. What does the coefficient for English_speakers mean?
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Which of the following best explains a scatter plot?
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Which of these are correct about correlation coefficient? (Select all that apply)
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Which of these options is most likely to be the null hypothesis for testing correlation between two variables?
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Given the results for tenure-ship vs teaching evaluation, if our null hypothesis is that there is no difference in mean evaluation scores for professors who are tenured vs professors who are not tenured. What will be the conclusion of the t-test statistics?
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Give the results of the regression analysis below, what is the correlation coefficient?
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Does running an ANOVA give the same p-value results as running a regression analysis when testing the difference in group means?
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The mineral content of a particular brand of supplement pills is normally distributed with mean 490 mg and variance of 400. What is the probability that a randomly selected pill contains at least 500 mg of minerals?
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A room in a laboratory is only considered safe if the mean radiation level is 400 or less. When a sample of 10 radiation measurements were taken, the mean value of the radiation was 414 with a standard deviation of 17. There are concerns that mean radiation is above 414.
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