5. The process of using sample statistics to draw conclusions about true population parameters is called a. Statistical inference b. The scientific method c. Sampling d. Descriptive statistics. 6. Which of the following statistics is not a measure of central tendency? a. Arithmetic mean b. Median c. Mode d. Q3 7. The smaller the spread of scores around the arithmetic mean, a. The smaller the interquartile range b. The smaller the standard deviation c. The smaller the variance d. All of the above. 8. Which of the following is sensitive to extreme values? a. Median b. Interquartile range c. Arithmetic mean d. 1st quartile 14. True/False A population with 200 elements has an arithmetic mean of 10. From this information, it can be shown that the population standard deviation is 15. 15. True/False In a sample of size 40, the sample mean is 15. In this case, the sum of all observations in the sample is X-600 Topics to understand: 1. Samples versus populations and the relationship between them 2. types of data 3. descriptive versus inferential statistics 4. the characteristics of measures of location and variation