For the Questions Below, Assume a Stack Class Stores Int

question 11

Multiple Choice

For the questions below, assume a Stack class stores int values. Consider the following sequence of instructions.
Stack s = new Stack( ) ;
s.push(16) ;
s.push(12) ;
s.push(19) ;
int x = s.pop( ) ;
s.push(5) ;
s.push(9) ;
s.push(4) ;
int y = s.pop( ) ;
int z = s.pop( ) ;
-After the instructions execute, z has the value

• A) 4
• B) 9
• C) 5
• D) 12
• E) 16

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Definitions:

Cholesterol Levels

The amount of cholesterol present in the bloodstream, important for assessing heart disease risk.

Sign Test

A non-parametric test that assesses the median of a statistical population by comparing the number of positive vs. negative changes from a median value.

Matched Pairs

A study design where each participant is paired with another participant who has similar characteristics, but receives a different treatment.

Null Hypothesis

A statement used in statistics that assumes no significant difference or effect exists in a set of observations.