Advertisements
Advertisements
प्रश्न
Explain in detail about sampling error
Advertisements
उत्तर
Sampling Error:
Error, which arise in the normal course of investigation or enumeration on account of chance, is called sampling errors, sampling errors are inherent in the method of sampling.
They may arise accidentally without any bias or prejudice.
Sampling Errors arise primarily due to the following reasons:
(a) Faulty selection of the sample instead of correct sample by defective sampling technique.
(b) The investigator substitutes a convenient sample if the original sample is not available while investigation.
(c) In area surveys, while dealing with borderlines it depends upon the investigator whether to include them in the sample or not.
This is known as faulty demarcation of sampling units.
APPEARS IN
संबंधित प्रश्न
Which of the following methods give better results and why?
What is standard error?
Explain in detail about simple random sampling with a suitable example
Explain the stratifi ed random sampling with a suitable example
Using the following Tippet’s random number table
| 2952 | 6641 | 3992 | 9792 | 7969 | 5911 | 3170 | 5624 |
| 4167 | 9524 | 1545 | 1396 | 7203 | 5356 | 1300 | 2693 |
| 2670 | 7483 | 3408 | 2762 | 3563 | 1089 | 6913 | 7991 |
| 0560 | 5246 | 1112 | 6107 | 6008 | 8125 | 4233 | 8776 |
| 2754 | 9143 | 1405 | 9025 | 7002 | 6111 | 8816 | 6446 |
Draw a sample of 10 three-digit numbers which are even numbers
A wholesaler in apples claims that only 4% of the apples supplied by him are defective. A random sample of 600 apples contained 36 defective apples. Calculate the standard error concerning of good apples
A sample of 1000 students whose mean weight is 119 lbs (pounds) from a school in Tamil Nadu State was taken and their average weight was found to be 120 lbs with a standard deviation of 30 lbs. Calculate the standard error of the mean
Choose the correct alternative:
A finite subset of statistical individuals in a population is called ______
Choose the correct alternative:
Any statistical measure computed from sample data is known as ______
A sample of 100 students is drawn from a school. The mean weight and variance of the sample are 67.45 kg and 9 kg. respectively. Find (a) 95% (b) 99% confidence intervals for estimating the mean weight of the students
