Tag | Value |
---|---|
file | Inferential_Statistics_vufsw-testing-1102-en_vufsw-testing-1102-en |
name | vufsw-testing-1102-en |
section | inferential statistics/confidence intervals/testing |
type | schoice |
solution | TRUE, FALSE, FALSE, FALSE |
Type | conceptual |
Program | NA |
Language | English |
Level | statistical literacy |
22 randomly selected German journalists (group 1) and 20 randomly chosen Argentine journalists (group 2) were asked to rate the quality of the German team. The response scale ranges from 0 (very bad) to 10 (very good). The (fictitious) results show that the German group gives an average of 8.3 and the Argentine group gives an average of a 7.9. One researcher wants to find out whether the ratings are significantly different between the two groups. He calculates the 95% confidence interval of the difference in averages, µ1- µ2. This interval turns out to be (0.15; 0.65).
The researcher concludes that the ratings of the two groups are significantly different from each other. From what can this be inferred?