Multiple choice

1. The standard deviation of all possible sample proportions increases as the sample size increases. (Points : 1) 

True 

False 

2. For non-normal populations, as the sample size (n) _________, the distribution of sample means approaches a/an __________ distribution. (Points : 1) 

decreases, uniform

increases, normal

decreases, normal

increases, uniform

increases, exponential

3. The central limit theorem states that as sample size increases, the population distribution more closely approximates a normal distribution. (Points : 1) 

True 

False 

4. If the sampled population has mean 48 and standard deviation 16, then the mean and the standard deviation for the sampling distribution of for n = 16 are (Points : 1) 

4 and 1.

12 and 4.

48 and 4.

48 and 1.

48 and 16.