Question: Explain 3 threats to internal validity. Define the four levels of measurement. You are working for the federal government, transportation minister wanted to build bicycle
Explain 3 threats to internal validity.
Define the four levels of measurement.
You are working for the federal government, transportation minister wanted to build bicycle lane in public roads. However, the minister wanted to know whether this would be a popular policy for the public, he asked you to conduct a survey to find out. Which sampling method is best suited for the task? And explain the reason for your choice.
What is a Type II error?
If you want to find out whether there is any significant difference of occupation choices between 5 different tribes in your country, explain which statistical test is more suitable for this case and why?
What is the purpose of a correlation test?
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