Answer all Multiple choice and true and false questions:

1. Descriptive Statistics provide key attributes of a data set
2. True
3. False
4. Which of the following not a type of nonprobability sampling?
5. Snowball
6. Convenience
7. Ad hoc
8. Stratified Sampling
9. 25% of a random sampling of 300 professional golfers indicates that their parents did not play golf. Based on this sample, we estimate that 25%of the parents of all professional golfers do not play golf. This is an example of statistical inferences.
10. True
11. False
12. Samples displaying large variability among the measurements will produce small bounds on the error of estimation.
13. True
14. False
15. A questionnaire is an example of the survey sampling technique.

a) True

B) False

1. In cluster sampling, the population size can be calculated as,
2. Sum of the elements in all clusters in the population
3. Adding together all the clusters in the population
4. The ratio of cluster in the sample to the total cluster in the population
5. Sum of the elements in the cluster in your sample

7. A decrease in sample size will decrease the magnitude of the sampling error

1. True
2. False

8. Which of the following statement about a sample survey is correct?

1. If the sample surveys are not carefully planned and executed, inaccurate and misleading results can appear
2. A sample survey can provide information about individual units
3. Sample survey do not need highly trained and sophisticated instruments
4. Not all sampling results are subject to error