GC Mathematics Two Sample T Hypothesis Test Questions
Description
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Directions
Use the drop-down menu to learn about the three steps needed to complete this assignment.Three steps to complete the assignment
Context
Do undergraduates sleep less than graduate students?
A student conducted a study of sleep habits at a large state university. His hypothesis is that undergraduates will party more and sleep less than graduate students. He surveyed random samples of 75 undergraduate students and 50 graduate students. Subjects reported the hours they sleep in a typical night.
For this hypothesis test, he defined the population means as follows:
- s the mean number of hours undergraduate students sleep in a typical night.
- (mu_2) is the mean number of hours graduate students sleep in a typical night.
Variables
Hours: typical number of hours a student sleeps each night
Program: undergraduate or graduate
Program is the explanatory variable, and the data is categorical. Hours is the response variable, and the data is quantitative.
Data
Download the https://app.box.com/s/sl7mjfvov0o3xe5f2nej5ivmclye2mpv
Prompt
- State the null and alternative hypotheses. Include a clear description of the populations and the variable.
- Explain why we can safely use the two-sample T-test in this case.
- Use StatCrunch to carry out the test. (directions) My account on Statcrunch is: User Aobeeda2003 Password Abdullah_2008
Copy the content in the StatCrunch output window (text and the table) and paste it into the textbox with your response. - State a conclusion in the context of this problem.
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