There are 50 classrooms on a particular school campus. The school district wants to see if students have been adequately trained to deal with earthquakes. They want to determine the average time students get under a desk or table to "duck and cover". They randomly select 5 science labs and find the average time is 27.3 seconds for all students to get under a desk when an alarm goes off. Which of the following is NOT TRUE? The parameter is the mean amount of time it takes ALL students to get under a desk and "duck and cover". The statistic of 27.3 seconds is the mean amount of time it takes the sampled students to get under a desk and "duck and cover". The sample does not represent all students because they only included "science labs" The sample is representative of all students because they used a cluster sampling method that uses randomization.
There are 50 classrooms on a particular school campus. The school district wants to see if students have been adequately trained to deal with earthquakes. They want to determine the average time students get under a desk or table to "duck and cover". They randomly select 5 science labs and find the average time is 27.3 seconds for all students to get under a desk when an alarm goes off. Which of the following is NOT TRUE? The parameter is the mean amount of time it takes ALL students to get under a desk and "duck and cover". The statistic of 27.3 seconds is the mean amount of time it takes the sampled students to get under a desk and "duck and cover". The sample does not represent all students because they only included "science labs" The sample is representative of all students because they used a cluster sampling method that uses randomization.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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answer the questions in the picture please.
Transcribed Image Text:There are 50 classrooms on a particular school campus. The school district wants to see if students
have been adequately trained to deal with earthquakes. They want to determine the average time
students get under a desk or table to "duck and cover". They randomly select 5 science labs and find
the average time is 27.3 seconds for all students to get under a desk when an alarm goes off. Which
of the following is NOT TRUE?
The parameter is the mean amount of time it takes ALL students to get under a desk and "duck and cover".
The statistic of 27.3 seconds is the mean amount of time it takes the sampled students to get under a desk
and "duck and cover".
The sample does not represent all students because they only included "science labs"
The sample is representative of all students because they used a cluster sampling method that uses
randomization.
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