.A study of n=56hospital employees found that the number of latex gloves used per week by the sampled workers is summarized byx-bars=19.2and s=13.7. Letrepresent the mean number of latex gloves used per week by all hospital employees. Consider testingHo:=22against Ha:<22.Let alpha=.10.

a.Rejectionregion z < - 1.28Test statistic = -2.05Reject Ho

b.Rejectionregion z < -2.33Test statistic = -1.47Do not Reject Ho

c.Rejection region z < -1.28Teststatistic = -1.53Reject Ho

d.Rejectionregion z < -1.645Test statistic = -1.24Do notReject Ho