rueF alse Indicate whether the statement is true or false.(1 POINT each x 30) 1.
ID: 2922806 • Letter: R
Question
rueF alse Indicate whether the statement is true or false.(1 POINT each x 30) 1. Using the average score to describe a sample is an example of inferential statistics. 2. A researcher is interested in the average income for registered voters in the United States. The entire group of registered voters is an example of a population A researcher interested in vocabulary development obtains a sample of 3-year-old children to participate in a research study. The average score for the group of children is an example of a 3. 4· The goal for an experiment is to demonstrate that changes in one variable are responsible for causing changes in a second variable. 5. A correlational study typically uses only one group of participants but measures two different variables (two scores) for each individual 6. A correlational study is used to examine the relationship between two variables but cannot determine whether it is a cause-and-effect relationship 7. A recent report concluded that college graduates have higher life-satisfaction scores than individuals who do not receive college degrees. For this study, graduating versus not graduating is an example of a quasi-independent variable A discrete variable must be measured on a nominal or an ordinal scale. 8. Classifying people into two groups on the basis of gender is an example of measurement on an ordinal scale 9. 10. To compute X you first add the scores, then square the total. 11 . The final step in computing (X + I), is to square the sum ofthe (X + 1 ) values. 12. For the following scores, 2(X + 81. Scores: 1, 3, 0, i 13. For the following scores, X 35. Scores: 1, 3.5 14. For the following distribution of scores, 2050 of the individuals have scores of X = 1. 15. A grouped frequency distribution table lists one interval as, 20-29. The width of this interval is9 points.Explanation / Answer
Solution:-
1. FLASE
2. TRUE
3.FLASE
4.TRUE
5,TRUE
6.TRUE
7.TRUE
8.FLASE
9.FLASE
10.FLASE
11.FLASE
12.FLASE
Explanation:- 4+16+0+4 = 24
13.TRUE
Explanation = 1+9+25 35
14.FLASE
15.FLASE
Explanation:- 10 points (29.5 - 19.5 = 10)
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