Professor Hogshead found a statistically significant relationship between variable X and variable Y. It is statistically significant at the .05 level. What does this mean?
A) There are 95 chances in 100 that the results are true.
B) There is a 5 chance that the results are true.
C) If 100 samples were drawn, results like these could be obtained by pure random chance 10 of the time.
D) A person could be 95 sure that the results of the study were a reflection of the population if random sampling was used.
E) A and D.
When a researcher assumes that he/she does not know in advance every question that should be asked, that subjects will not find equal meaning in like-worded questions, and plans to develop probes during the interview, this is a(n) __________
structure.
A) semistandardized interview
B) standardized interview
C) creative interview
D) unstandardized interview
You discover that the years of marriage before a divorce for nine white people and nine non-white people are as follows:
Whites 12, 1, 8, 9, 10, 17, 3, 6, 6
Non-whites 1, 9, 15, 18, 11, 13, 14, 7, 3
Which statement about this data is TRUE?
A) There is no difference in the range for the two groups.
B) The median years of marriage prior to divorce is three years longer for whites than non-whites.
C) The mean years of marriage prior to divorce is the same for both groups.
D) On average, non-whites stay married longer prior to divorce than the whites.
E) The mode for the two groups is the same.
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