Tag | Value |
---|---|
file | Inferential_Statistics_vufsw-confidenceintervals-0142-en_vufsw-confidenceintervals-0142-en |
name | vufsw-confidenceintervals-0142-en |
section | inferential statistics/confidence intervals |
type | schoice |
solution | FALSE, TRUE, FALSE, FALSE, FALSE, FALSE |
Type | conceptual |
Program | NA |
Language | English |
Level | statistical literacy |
Suppose a researcher administered to 102 employees of a large company a questionnaire that surveyed how they rated their supervisor rating. The scores ranged from 0 (very negative) to 5 (very positive). It is tested whether people with a permanent contract ______[group 2; n=51] rate their supervisor more positively than those with a temporary contract (group 1; n=51). He calculates the 95% confidence interval of the difference in averages, µ1 - µ2. This interval turns out to be µ[-0.03; 0.08] are.
Do the mean ratings of the two groups differ significantly from each other? We test two-sided and use a significance level of 5%. And from what can this conclusion be derived?