A medical researcher wondered if there is a significant difference between the mean birth weight of boy and girl babies.A random sample of babies' weights (pounds)showed the following: How many degrees of freedom would be used to test for a zero difference in means?
A)4
B)8
C)10
D)Must know α to say.

Question

A medical researcher wondered if there is a significant difference between the mean birth weight of boy and girl babies.A random sample of babies' weights (pounds)showed the following:  How many degrees of freedom would be used to test for a zero difference in means?
A)4 
B)8 
C)10 
D)Must know α to say.

Quizplus · Accepted Answer

The Answer of A medical researcher wondered if there is a significant difference between the mean birth weight of boy and girl babies.A random sample of babies' weights (pounds)showed the following:  How many degrees of freedom would be used to test for a zero difference in means?
A)4 
B)8 
C)10 
D)Must know α to say.

A Medical Researcher Wondered If There Is a Significant Difference