Valdez Just Made a Toast at His Brother's Wedding in Front

question 376

Multiple Choice

Valdez just made a toast at his brother's wedding in front of 400 people and has now returned to his seat.The next toast is taking place,and although Valdez is looking like he is paying attention,he is,in fact,calming down from the incredible stress he just went through,and the words of the next speech float right over him.Instead,he feels his heart rate return to normal,the saliva returns to his mouth,and his stomach feels much better.What part of his nervous system is responsible for the reaction he is having after the speech?

• A) parasympathetic
• B) sympathetic
• C) somatic
• D) central

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Definitions:

Hypothesis Testing

A method of statistical inference used to decide whether a hypothesis about a parameter in a population is likely to be true.

Interval Estimation

A scope of values, from collected sample data, that is likely to embody the value of an unexplored population parameter.

Confidence Interval

A range of values, derived from the sample statistics, within which there is a specified level of confidence where the true parameter lies.

Standard Error

The standard deviation of the sampling distribution of a statistic, typically mean, estimating the variability.