i. If probability sampling is done, each item in the population has a chance of being chosen.
ii. If the size of a sample equals the size of the population, we would not expect any error in estimating the population parameter.
Iii) Ontario Parks wardens estimate the average weight of the fish or game population by using creel checks and other devices. Based on this sample data, a warden might estimate that the mean weight of Coho salmon caught in Lake Ontario is 2.5 pounds. This single number is called a point estimate of
The unknown population parameter.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements, but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements but not (i).
E) All statements are false

Question

i. If probability sampling is done, each item in the population has a chance of being chosen. 
ii. If the size of a sample equals the size of the population, we would not expect any error in estimating the population parameter.
Iii) Ontario Parks wardens estimate the average weight of the fish or game population by using creel checks and other devices. Based on this sample data, a warden might estimate that the mean weight of Coho salmon caught in Lake Ontario is 2.5 pounds. This single number is called a point estimate of
The unknown population parameter.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements, but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements but not (i).
E) All statements are false

Quizplus · Accepted Answer

(i) and (iii) are correct statements. (ii) is incorrect because the sample size is usually much smaller than the population size, so there will be some error in estimating the population parameter.

I If Probability Sampling Is Done, Each Item in the Population