TESTIN MISELF 4 RESEARCH

A  (a)    method is any method of sampling that utilizes some form of random selection.

Why is it important to calculate samples in making research than to survey the whole population? (1 Reason)

(a)  

In Probability Sampling,

_  = the number of cases in the sampling frame.

_ = the number of cases in the sample.

Is the easiest form of probability sampling.

(a)  

Sometimes called proportional or quota random sampling, involves dividing your population into homogeneous subgroups and then taking a simple random sample in each subgroup.

(a)  

The main aim of (a)   can be specified as cost reduction and increasing the levels of efficiency of sampling. 

• - is used to calculate the sample size (n) given the population size (N) and a margin of error (e). 

- it's a random sampling technique formula to estimate sampling size. 

Is the allowable error in percent due to the use of the sample, instead of the population.

(a)  

This formula is only used when the sample size is unknown; for example, since things like IQ scores tend to follow a predictable distribution pattern, it is easy to find an appropriate sample size for studying this topic.

(a)  

In Slovin's formula, the Formula given is...