This post provides a psy516 quiz 2 solution that helps you to prepare for your online test and it will also be beneficial in your exam paper preparation.

PSY516 Quiz 2 Solved

1) Samples of size are selected from a population with men 40 and standard deviations 7.5. What would be the standard error of the sampling distribution of sample means

1. 3
2. 2
3. 5
4. 5

2) A researcher needs all of the following from a sample EXPECT:

1. Standard deviation
2. Standard error
3. Mean
4. Number of observations

3) Which of the following are two types of Estimation

1. Point and interval
2. Biased and unbiased
3. One sided and two sided
4. Type I and type II

4) Z-test is always used to test the population mean whether population variance is known or unknown when sample size n should be:

1. No condition
2. Equal or greater than 30
3. Equal or less than 30
4. Less than 30

5) What would be the probability of an impossible event

1. 0
2. 2
3. 3
4. 1

6) What is the relationship between a 95-confidence interval and a 99-confidence interval from the same sample

1. The 99% interval will be wider
2. The 95% interval will be wider
3. Both intervals have the same width
4. Both intervals have the different width

7) The binomial distribution tends toward _________ shape, especially when the sample size(n) is relatively large.

1. Stewed to right
2. Stewed to left
3. Normal
4. Binomial

8) Which of the following laws is considered when the sample size increase, the error between the sample mean and the population mean should decrease

1. Law of small numbers
2. Law of population numbers
3. Law of large numbers
4. Law of sample numbers

9) The measurements of spread or scatter of the individual values around the central point is called:

1. Measure of skewness
2. Measure of kurtosis
3. Measure of central tendency
4. Measure of dispersion

10) Standard error of sampling distribution is also called as:

1. Sampling error
2. Standard error
3. Standard deviation
4. Standard error of M