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
There is a certain bias involved in the non-random selection of samples.
Do samples provide better results than surveys? Give reasons for your answer.
What is population?
What is statistic?
What is standard error?
State any two demerits of 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
Choose the correct alternative:
A ______ of statistical individuals in a population is called a sample
Choose the correct alternative:
A ______ is one where each item in the universe has an equal chance of known opportunity of being selected
Write short note on sampling distribution and standard error
