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 22:50, 7obadiah
He graph of f(x) = |x| is stretched by a factor of 0.3 and translated down 4 units. which statement about the domain and range of each function is correct? the range of the transformed function and the parent function are both all real numbers greater than or equal to 4. the domain of the transformed function is all real numbers and is, therefore, different from that of the parent function. the range of the transformed function is all real numbers greater than or equal to 0 and is, therefore, different from that of the parent function. the domain of the transformed function and the parent function are both all real numbers.
Answers: 3
Mathematics, 22.06.2019 00:00, alyxxboothe
Can someone me with this? iām not sure what to put for my equations.
Answers: 2
Agroup of researchers investigated the contamination of medical personnel clothing at a new york hos...
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