There are 120 students at Francis Howell North High School. Mr. Willott conducts a poll that asks20 randomly selected students how many hours of sleep they got last night. They find that themean amount of sleep is 6.7 hours. The population standard deviation is o = 2 hours. Can weestimate the standard deviation of the sampling distribution of means by using%3DV200.447 hours?O No, because we don't know that the distribution of sleep hours for the population is approximately Nor.O No, because we can't be sure that the central limit theorem applies to this situation.O Yes, because all the conditions for using this formula have been met.O No, because "hours of sleep" is not a continuous variable.O No, because the sample is more than 10% of the population.

Since the population size is greater than 30 hence population will follow the normal distribution by…

There are 120 students at Francis Howell North High School. Mr. Willott conducts a poll that asks 20 randomly selected students how many hours of sleep they got last night. They find that the mean amount of sleep is 6.7 hours. The population standard deviation is o = 2 hours. Can we estimate the standard deviation of the sampling distribution of means by using V20 0.447 hours? O No, because we don't know that the distribution of sleep hours for the population is approximately Nor. O No, because we can't be sure that the central limit theorem applies to this situation. O Yes, because all the conditions for using this formula have been met. O No, because "hours of sleep" is not a continuous variable. O No, because the sample is more than 10% of the population.

There are 120 students at Francis Howell North High School. Mr. Willott conducts a poll that asks 20 randomly selected students how many hours of sleep they got last night. They find that the mean amount of sleep is 6.7 hours. The population standard deviation is o = 2 hours. Can we estimate the standard deviation of the sampling distribution of means by using V20 0.447 hours? O No, because we don't know that the distribution of sleep hours for the population is approximately Nor. O No, because we can't be sure that the central limit theorem applies to this situation. O Yes, because all the conditions for using this formula have been met. O No, because "hours of sleep" is not a continuous variable. O No, because the sample is more than 10% of the population.

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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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

There are 120 students at Francis Howell North High School. Mr. Willott conducts a poll that asks
20 randomly selected students how many hours of sleep they got last night. They find that the
mean amount of sleep is 6.7 hours. The population standard deviation is o = 2 hours. Can we
estimate the standard deviation of the sampling distribution of means by using
%3D
V20
0.447 hours?
O No, because we don't know that the distribution of sleep hours for the population is approximately Nor.
O No, because we can't be sure that the central limit theorem applies to this situation.
O Yes, because all the conditions for using this formula have been met.
O No, because "hours of sleep" is not a continuous variable.
O No, because the sample is more than 10% of the population.

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