Word Problems: t-Test #9

#9

As a doctor, you are interested in how well your new cure for the cold works. You randomly assign your patients to two conditions: treatment and control. The independent variable is Drug, and the dependent variable is coughs per hour.

Drug       Control
   1                 2 
   6                 5
   5                 1
   4                 3 
   5                 4 
 33                 0

What is the median for Drug:   

What is the mean for Drug:     

What is the SS for Drug:   

What is the mode for Control:

What is the SS for Control:

Since you are interested in which group did best, which of the following tests should you perform:

a. t-test
b. ANOVA
c. correlation
d. regression
e. multiple regression

Perform the comparison you selected in the item above. Select only the appropriate one(s). What was the result of your calculation?

a =

b =

r =

t =   

F =

Which is the best treatment for the cold?

 

 

Answers

 

NOW YOU CHOOSE:
    Day 8: Student’s t-Test
    Bit More About t-Test
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    How to Calculate t-Test
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        Sim7           Sim8            Sim9
    Basic Facts About t-Test
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    Quiz 8
    Summary