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eigth workers were select to participate in the training andtheir assembly time

ID: 2955064 • Letter: E

Question

eigth workers were select to participate in the training andtheir assembly time recorded. Conduct a hypothesis to validate thestatement. Worker   Before training   Aftertraining     1              36                    30     2               43                    33     3               44                    35     4              38                     32      5              31                    30     6              37                     31     7               40                     33     8              49                     37 eigth workers were select to participate in the training andtheir assembly time recorded. Conduct a hypothesis to validate thestatement. Worker   Before training   Aftertraining     1              36                    30     2               43                    33     3               44                    35     4              38                     32      5              31                    30     6              37                     31     7               40                     33     8              49                     37

Explanation / Answer

Group   Before training      After training   Mean 39.75 32.63 SD 5.55 2.45 SEM 1.96 0.86 N 8     8     The test hypothesis is Ho:d=0 Ha:d not equal 0 The test statistic is t = 6.0812   df = 7   standard error of difference = 1.172 The two-tailed P value equals 0.0005 Since the p-value is less than =0.025, we rejectHo.   By conventional criteria, this difference is consideredto be extremely statistically significant.