Astudy investigated the relationship of employment status to mental health. a sample of 49 unemployed men took a mental health examination measuring present mental health with lower values indicating better mental health. their mean score was 10.94 and a standard deviation of 4.90. how much evidence do we have that the mean score exceeds 10?
a. no evidence (not even at 10%)
b. some evidence (significant at 10% only)
c. strong evidence (significant at 5% but not 1%)
d. very strong evidence (significant even at 1%)