A potato chip manufacturer has found that in the past the standard deviation of bag weight has been 0.2 ounces.They want to test whether the standard deviation has changed.The null hypothesis is:
A) : = 0.2.
B) : σ = 0.2.
C) : σ = 0.04.
D) : = 0.04.

Question

A potato chip manufacturer has found that in the past the standard deviation of bag weight has been 0.2 ounces.They want to test whether the standard deviation has changed.The null hypothesis is:
A) : = 0.2. 
B) : σ = 0.2. 
C) : σ = 0.04. 
D) : = 0.04.

Quizplus · Accepted Answer

The Answer of A potato chip manufacturer has found that in the past the standard deviation of bag weight has been 0.2 ounces.They want to test whether the standard deviation has changed.The null hypothesis is:
A) : = 0.2. 
B) : σ = 0.2. 
C) : σ = 0.04. 
D) : = 0.04.

A Potato Chip Manufacturer Has Found That in the Past