Advertisements
Advertisements
Question
Which of the following methods give better results and why?
Options
Census
Sample
Advertisements
Solution
Sample Method gives better results than the Census Method due to the following reasons.
1. Accuracy- Although the census method provides more accurate and reliable results as compared to the sampling method but in the sampling method the errors can be easily located and rectified in the sampling methods due to the smaller number of items. Therefore, despite the sampling method providing lesser reliable results (as not all units are studied) yet the sampling method is efficient in the sense that errors committed can be easily located.
2. Less Time and Energy Consuming- The Sample Method involves the study of fewer items of the universe. So, this method not only saves time but also the energy of the investigator.
3. Cost-Efficient- The cost of approaching each individual unit for interrogation and collection of data is comparatively lower due to the small size of the sample.
4. Lesser Non-sampling Errors- The probability of Non-sampling Errors is also low as the sample size is smaller as compared to that of the Census Method.
5. More Efficient- As the sample size is small, so small teams of enumerators can be formed. These small teams can easily be well-trained and supervised. Consequently, the team can work more efficiently than the team engaged in the Census Method.
APPEARS IN
RELATED QUESTIONS
Non-sampling errors can be minimized by taking large samples.
In a village of 200 farms, a study was conducted to find the cropping pattern. Out of the 50 farms surveyed, 50% grew only wheat. What is the population and the sample size?
Give two examples each of sample, population and variable.
Suppose there are 10 students in your class. You want to select three out of them. How many samples are possible?
Discuss how you would use the lottery method to select 3 students out of 10 in your class?
What is sampling distribution of a statistic?
Explain in detail about simple random sampling with a suitable example
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
A random sample of 60 observations was drawn from a large population and its standard deviation was found to be 2.5. Calculate the suitable standard error that this sample is taken from a population with standard deviation 3?
Choose the correct alternative:
Any statistical measure computed from sample data is known as ______
Choose the correct alternative:
In ______ the heterogeneous groups are divided into homogeneous groups
Explain the types of sampling
Write short note on sampling distribution and standard error
Determine the standard error of proportion for a random sample of 500 pineapples was taken from a large consignment and 65 were found to be bad
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
Use the data in the Table below that relate to monthly household expenditure (in Rs) on the food of 50 households and
| 1904 | 1559 | 3473 | 1735 | 2760 |
| 2041 | 1612 | 1753 | 1855 | 4439 |
| 5090 | 1085 | 1823 | 2346 | 1523 |
| 1211 | 1360 | 1110 | 2152 | 1183 |
| 1218 | 1315 | 1105 | 2628 | 2712 |
| 4248 | 1812 | 1264 | 1183 | 1171 |
| 1007 | 1180 | 1953 | 1137 | 2048 |
| 2025 | 1583 | 1324 | 2621 | 3676 |
| 1397 | 1832 | 1962 | 2177 | 2575 |
| 1293 | 1365 | 1146 | 3222 | 1396 |
Monthly Household Expenditure (in Rupees) on Food of 50 Households
Find the number of households whose monthly expenditure on food is
(b) more than Rs 3000
(c) between Rs 1500 and Rs 2500
