Mathematics, 29.06.2019 14:40 skylex
Agroup of researchers investigated the contamination of medical personnel clothing at a new york hospital since there is a potential for patient exposure to potentially dangerous bacteria. they sampled neckties worn by physicians, physician assistants, and medical students at a teaching hospital in new york. nearly half (47.6%) of the neckties tested harbored microorganisms that can cause illness. by comparison, only one of the 10 ties worn by security guards tested positive for a disease-carrying microorganism. the researchers want to determine if the difference is statistically significant. which of the following is an appropriate statement of the null hypothesis? a. the proportion of contaminated ties from medical personnel is the same as the proportion of contaminated ties from security guards. b. the proportion of contaminated ties from medical personnel is not the same as the proportion of contaminated ties from security guards. c. the proportion of contaminated ties from medical personnel is greater than the proportion of contaminated ties from security guards.
Answers: 3
Mathematics, 21.06.2019 16:30
Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores
Answers: 1
Mathematics, 21.06.2019 22:20
Which strategy is used by public health to reduce the incidence of food poisoning?
Answers: 2
Mathematics, 21.06.2019 23:00
Can someone me with my math problems i have a bunch. i will give brainliest and lots of pleeeaaasssee
Answers: 2
Agroup of researchers investigated the contamination of medical personnel clothing at a new york hos...
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