Bacterial contamination of surgical patients can occur from bacteria that contam

Question

Bacterial contamination of surgical patients can occur from bacteria that contaminate the scrub suits worn by surgical determine this, he randomly sampled 19 doctors and measured the bacterial content on the shoulder of their scrubs at four times during the day: start of shift, immediately before lunch, immediately after lunch, and at the end of the shift. L A hospital administrator wanted to know if the mean bacterial content on scrub suits increased through the day. In order to Time of Day Start of End of betare L After L Bacterial Count Which time of day has the smallest median bucterial count? Start of day Before lunch After lunch End of day Which time of day has the smallest range of bacterial counts? Start of day Before lunch After lunch End of day Which time of day has a bacterial count which is most strongly right-skewed? Start of day Before lunch After lunch End of day According to the boxplots 25% of doctors in this sample had a bacterial count of 24 or less at the end ofthe day. What percentage of doctors had a bacterial count of 24 or higher before lunch? 0% 25% 50% 75% 100%

Explanation / Answer

1. Start of day since it has the middle line smaller than all other boxpots.

2. After lunch

3. Before lunch

4. 75%

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