Caiib ABM Unit 13 : Sampling Methods

Discussion :5.10.2018,6.10.2018

Meenakshi:
1)What is sampling for groups with considerable variation within but similar to
                 each other  called ?
              a) cluster
              b) stratified
              c) systematic
              d) random


2)What are sampling groups which are very similar within but dissimilar without
                are called  ?         
              a) cluster
              b) stratified
              c) systematic
              d) random

3)In which of the situations would σ¯x = σ  not  be the correct formula for
      Sampling                                               √n 
   
              a) infinite population                             
              b) finite population with replacement
              c) finite population without replacement
              d) none of the above

Lalu Poddar:
Meenakshi:
1)What is sampling for groups with considerable variation within but similar to
                 each other  called ?
              a) cluster
              b) stratified
              c) systematic
              d) random
Ans cluster sampling

Meenakshi:
..... is one in which each sample has the same probality of being choosen.

Which type of sampling has representative subjective ??

Name the sampling technique in which we take sample without any rule ??

Strata is used in which type of sampling ??

Lalu Poddar:
Meenakshi:
2)What are sampling groups which are very similar within but dissimilar without
                are called  ?         
              a) cluster
              b) stratified
              c) systematic
              d) random
Ans stratified

Meenakshi:
Standard deviation of distribution of sample means is called .... ???

A jar contains 7 red marbls, 3 green marbles n 10 white marbles. If a marble is drawn at random , wt is the probality that it is white ??

Stuti:
ans-10/21

random sampling

random sampling

Meenakshi:
A population contains 2 items and 4 items are selected at random with replacement, then all possible
samples will be ......
a. 16
b. 8
c. 4C2
d. 4
Ans - a

SELVARAJ T:
Characteristics of samples?

Judgement sampling?

sonal:
The population divided into relatively homogeneous group is called .......?

Meenakshi:
strata

SELVARAJ T:
Strata

sonal:
Sampling by personal experience , opinions

Manju Sbi Bank:
Based on personal knowledge n opinion

SELVARAJ T:
Standard error of means

sonal:
Characteristics of sample....?

SELVARAJ T:
Statistics

sonal:
Characteristics of population....?

SELVARAJ T:
Parameters

To avoid _____errors we follow random sampling

Stratified

Meenakshi:
standard

??

SELVARAJ T:
Biased sampling

sonal:
Stratified sampling

SELVARAJ T:
Central limit theorems?

sonal:
Relationship between shape of population distribution and shape of sampling distribution of mean

SELVARAJ T:
Sample size at least?

sonal:
30

SELVARAJ T:
Standard deviation of stampling is equal to ?

Meenakshi:
standard error ??

SELVARAJ T:
Standard deviation of population divided by square root of samples size

Meenakshi:
What is a  survey of parliamentarians, seeking their opinion on revision
                   of perks, called? 

      a)   biased sampling
            b)   stratified sampling
            c)   random sampling
            d)  systematic sampling
Sonal :a


copied discussion as it is.without sorting.. check it n correct first