A Researcher Finds That the Mean Difference in Productivity Between

Multiple Choice

A researcher finds that the mean difference in productivity between employees working the morning shift (n = 16) and the night shift (n = 10) is 5.0 units,and the estimated standard error for the difference is 2.7 units.If the null hypothesis states that there is no difference in productivity,then is this result significant at a .05 level of significance?

A) Yes,this result is significant.
B) No,this result is not significant.
C) There is not enough information to answer this question.