There is disagreement among health care professionals about whether health careworkers should wear finger rings while performing patient-related work. Inparticular, plain rings are presumed to have little impact on bacterial transmission byhand. Previous studies have shown that bacteria are transmitted by patient contact inabout 25% of patient contacts where no ring is worn. Let p denote the proportion ofbacterial transmissions when a plain ring is worn. Investigators wish to determinewhether the proportion of bacterial transmissions when wearing plain rings is greaterthan 0.25.
a) What is the appropriate null hypothesis in this study?
b) What is the appropriate alternative hypothesis in this study?
c) In the context of this study, describe a Type I error and a Type II error.

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The Answer of There is disagreement among health care professionals about whether health careworkers should wear finger rings while performing patient-related work. Inparticular, plain rings are presumed to have little impact on bacterial transmission byhand. Previous studies have shown that bacteria are transmitted by patient contact inabout 25% of patient contacts where no ring is worn. Let p denote the proportion ofbacterial transmissions when a plain ring is worn. Investigators wish to determinewhether the proportion of bacterial transmissions when wearing plain rings is greaterthan 0.25.
a) What is the appropriate null hypothesis in this study?
b) What is the appropriate alternative hypothesis in this study?
c) In the context of this study, describe a Type I error and a Type II error.

There Is Disagreement Among Health Care Professionals About Whether Health