Please help me answer these STATISTICS questions

Test I. Direction. Write TRUE if the statement is correct and change the underlined word to make it correct if otherwise. 1. Statistics is a systematic way of collecting, organizing, summarizing, analysing and interpreting data 2. Parameter is a single number that maybe used to describe the collection of numerical measurements from a sample or to analyse those measurements more fully. 3. Inferential Statistics is a type of statistical methodology that gives us information about or describes the sample under study. Its main purpose is to tell something about the particular group of observation. 4. This measure consists of two or more categories into which individuals, objects, or things are classified. The purpose of interval scale is to classify and to determine equivalence and non- equivalence. 5. Ordinal scale measure defines the relative position of objects, things or individuals with respect to a characteristics with no implications as to the distance between positions. It only determines whether an individual has more or less of the attribute. 6. A variable is a characteristics of objects, people or events that can take of different values. It can vary in quantity or in quality. 7. Discrete Variable is a variable which consists of either a finite number of values or countable number of values. 8. If the mean of the set of data is greater than the median and the mode, such distribution is positively skewed. 9. If the mean of the set of data is lower than the median and the mode, such distribution is negatively skewed. 10. The median divides the frequency distribution into two equal parts. 11. The normal probability distribution is symmetrical about the standard deviation. 12. The normal probability distribution is asymptotic about the y-axis. The tails of the curve extends indefinitely in both directions. 13. The normal curve is a bell shape figure and has a single peak at the mean of the distribution. 14. Normality can be assumed if the mean is greater than the median and mode. 15. About 95.44% of the area under the normal curve is within +1.0 and -1.0 standard deviation from the mean. 16. About 50% of the normal distribution is above the mean. 17. A z-score is a standard score. 18. Type 1 error occurs when the researcher fail to rejects a true null hypothesis. 19. At .05 alpha level, the researcher is 99% confident that the decision is correct. 20. The critical value is the range of values that the researcher will reject the null hypothesis