Nt1310 Unit 1 Assignment 2
PART A
QUESTION 1
a) Research
Definition - is an attempt to discover something.
There are two type of research which is:
1. Formal research
-Researcher follow highly define and exacting procedure.
-Eg-
2. Informal research
-Only few (or no) specific plans or steps.
- Eg-
There are several important elements of research such as, the concept and construct, variables, qualitative and quantitative research, nature of measurements, level of measurements, measurement scale, rating scale and also the reliability and validity.
b) i) Concepts
Definition
– is a term that express an abstract idea formed by generalizing from particulars and summarizing related observations.
Example
-researcher observe that a speaker become restless, …show more content…
Is closely related to sample size- as sample size increases, standard error decreases.
2. Sampling error
Provide an indication of how close the data from a sample are to the population mean.
Low sampling error indicates that there is less variability or range in the sampling distribution
Eg- imagine that the mean IQ of UiTM students is 105.00. (If UiTM students are our population, then this mean is a parameter.) If we take a sample of 10 UiTM students and compute their mean IQ, it will probably not be exactly 105.00. Instead, let us say that it is 103.25. (This would be a statistic.) If we then take a second sample of 10 UiTM students and compute their mean IQ, again it will probably not be 105.00 and it probably will not be 103.25 (the mean of our first sample). Instead, it might be 106.87. If we keep doing this—say, 100 times—then we will probably end up with 100 different sample means, and it is very likely that none of them is exactly 105.00. This variability in the sample means is sampling error. (Note that the term “error” here does not mean that anyone has made a mistake. “Error” here just refers to
QUESTION 1
a) Research
Definition - is an attempt to discover something.
There are two type of research which is:
1. Formal research
-Researcher follow highly define and exacting procedure.
-Eg-
2. Informal research
-Only few (or no) specific plans or steps.
- Eg-
There are several important elements of research such as, the concept and construct, variables, qualitative and quantitative research, nature of measurements, level of measurements, measurement scale, rating scale and also the reliability and validity.
b) i) Concepts
Definition
– is a term that express an abstract idea formed by generalizing from particulars and summarizing related observations.
Example
-researcher observe that a speaker become restless, …show more content…
Is closely related to sample size- as sample size increases, standard error decreases.
2. Sampling error
Provide an indication of how close the data from a sample are to the population mean.
Low sampling error indicates that there is less variability or range in the sampling distribution
Eg- imagine that the mean IQ of UiTM students is 105.00. (If UiTM students are our population, then this mean is a parameter.) If we take a sample of 10 UiTM students and compute their mean IQ, it will probably not be exactly 105.00. Instead, let us say that it is 103.25. (This would be a statistic.) If we then take a second sample of 10 UiTM students and compute their mean IQ, again it will probably not be 105.00 and it probably will not be 103.25 (the mean of our first sample). Instead, it might be 106.87. If we keep doing this—say, 100 times—then we will probably end up with 100 different sample means, and it is very likely that none of them is exactly 105.00. This variability in the sample means is sampling error. (Note that the term “error” here does not mean that anyone has made a mistake. “Error” here just refers to