For the past 5 days, four times as many samples as usual submitted for ionized calcium were below the reference range. The same phlebotomist collected all the samples. When questioned, she said that the samples were collected using syringes from an arterial blood gas collection kit. What is the best explanation of these results

Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.