Question Details

The approximate standard error of the sample mean is calculated 



1.	Which of the following statements are correct?
a.	An interval estimate describes a range of values that is likely not to include the actual population parameter
b.	An interval estimate is an estimate of the range for a sample statistic.
c.	An interval estimate is an estimate of the range of possible values for a population parameter.
d.	None of these options


	

	2.	Which of the following are reasons for why simple random sampling is used infrequently in real applications?
a.	Samples can be spread over a large geographic region
b.	Simple random sampling requires that all sampling units be identified prior to sampling
c.	Simple random sampling can result in underrepresentation or overrepresentation of certain segments of the population
d.	All of these options


	

	3.	If systematic sampling is chosen as the sampling technique, it is probably because:
a.	Systematic sampling has better statistical properties than simple random sampling
b.	Systematic sampling is more convenient
c.	Systematic sampling always results in more representative sampling than simple random sampling
d.	None of these options


	

	4.	With proportional sample sizes:
a.	The proportion of a stratum in the sample is independent of the proportion of that stratum in the population
b.	The proportion of a stratum in the sample is the same as the proportion of that stratum in the population
c.	The proportion of a stratum in the sample is greater than the proportion of that stratum in the population
d.	The proportion of a stratum in the sample is less than the proportion of that stratum in the population



	5.	The approximate standard error of the sample mean is calculated as:
a.	 	c.	 
b.	 	d.	 




Math Assignment Help, Math Homework help, Math Study Help, Math Course Help