Solution Found!
Distinguishing Between a Parameter and a
Chapter 1, Problem 43E(choose chapter or problem)
Problem 43E
Distinguishing Between a Parameter and a Statistic In Exercise, determine whether the numerical value is a parameter or a statistic. Explain your reasoning.
Which part of the survey described in Exercise, represents the descriptive branch of statistics? Make an inference based on the results of the survey.
Exercise
A survey of 202 pilots found that 20% admit that they have made a serious error due to sleepiness. (Source: National Sleep Foundation)
Questions & Answers
QUESTION:
Problem 43E
Distinguishing Between a Parameter and a Statistic In Exercise, determine whether the numerical value is a parameter or a statistic. Explain your reasoning.
Which part of the survey described in Exercise, represents the descriptive branch of statistics? Make an inference based on the results of the survey.
Exercise
A survey of 202 pilots found that 20% admit that they have made a serious error due to sleepiness. (Source: National Sleep Foundation)
ANSWER:
Solution:
Step 1 of 2:
A survey of 202 pilots found that 20% admit that they have made a serious error due to sleepiness.
We have to determine whether the numerical value is a parameter or a statistic.
We also have to identify that which part of the study represents the descriptive branch of statistics, and an inference based on the result.