Advertisements
Advertisements
प्रश्न
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
Advertisements
उत्तर
Sample size n = 500
No. of bad pine apples = 65
Sample proportion = P = `65/100` = 0.13
Q = 1 – p
⇒ Q = 1 – 0.13
∴ Q = 0.87
The S.E for sample proportion is given by
S.E = `sqrt("PQ"/"N")`
= `sqrt(((0.13)(0.87))/500)`
= `sqrt(0.1131/500`
= `sqrt(0.0002262)`
= 0.01504
∴ S.E = 0.015
Hence the standard error for sample proportion is S.E = 0.015
APPEARS IN
संबंधित प्रश्न
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?
Explain the stratifi ed random sampling with a suitable example
Explain in detail about systematic random sampling with example
State any two merits of simple random sampling
State any two merits for systematic random sampling
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 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:
A ______ of statistical individuals in a population is called a sample
Choose the correct alternative:
In simple random sampling from a population of units, the probability of drawing any unit at the first draw is
Explain the types of sampling
