A study was conducted to test whether there is a difference in the time needed for the employees of a factory to assemble products. Sample of employees with different education qualifications (primary school, lower secondary school and upper secondary school graduates) were timed. The test result is to reject the null hypotheses and OUTPUT 2 has been produced.

Based on OUTPUT 2,

(i) State the hypothesis statement for each pair of the multiple comparison test.

Based on your answer in (ii), if new employees are to be recruited, which category the factory manager should consider? Why? 

time Bonferroni (1) employees Primary Multiple Comparisons Lower Secondary Higher Secondary Mean Difference (-J) -16607 -1.83750 (J) employees Lower Secondary Higher Secondary Primary Higher Secondary Primary Lower Secondary *. The mean difference is significant at the 0.05 level. 16607 -1.67143 1.83750 1.67143 Std. Error .69450 69450 69450 71727 69450 71727 Sig. 1.000 048 1.000 .093 048 .093 95% Confidence Interval Lower Bound -1.9892 -3.6606 -1.6571 -3.5543 0144 -2115 Upper Bound 1.6571 -.0144 1.9892 2115 3.6606 3.5543