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Constructing confidence Intervals
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Statistical investigation

These questions again use data from a survey of Albers students conducted in Fall 2014, regarding their housing situation.  The data are found in the file “housing survey data fall 2014.” 

a.       Use the data given to create a 95% confidence interval for the difference between the average number of people living together on-campus, and the average number of people living together off-campus. 

b.       Interpret the confidence interval created in part a.  Exactly what does it tell you

c.      Use the data given to create a 95% confidence interval for the difference between the proportion of on-campus students that own cars, and the proportion of off-campus students that owns cars. 

 

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Constructing confidence Intervals
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