Mathematics, 10.12.2019 22:31 rashif123kabir
The u. s. national toxicology program (ntp) studies the toxicity and carcinogenicity of agents potentially causing a risk to human health. electromagnetic fields around electrical installations are harmless in theory, but they might have a long-term effect on health (for instance, in triggering tumors). observational studies in human populations have suggested a potential association. an ntp study looked at the occurrence of cancers in otherwise healthy rats after two years of daily exposure to 60-hertz electromagnetic fields of various intensities. here are the numbers of male and female rats with a tumor after the two-year study period. note that 2 gauss is approximately 1000-fold greater than what is considered high exposure for humans. male rats female ratscontrol: no exposure 16 ( n=99 ) 19 ( n=100 )0.02-gauss exposure 31 (n = 100) 22 (n = 100)2-gauss exposure 30 (n = 100) 22 (n = 100)in rats not exposed to an electromagnetic field (sample size in parentheses), is there significant evidence of a difference in the tumor rates between males and females? h0: pmale = pfemaleha: pmale β pfemalei have figured out the null but not sure how to go about getting the Ο exsplain than you. what is the value of the test statistic? (round your answer to two decimal places.)Ο2 =
Answers: 2
Mathematics, 21.06.2019 13:00
Shiny white dental insurance costs $258 per year. approximately one-third of insured people need a filling, which averages $110 each. 80% of insured people get a preventive check-up each year, and the average cost of this visit is $95. if you consider shiny whiteβs income and expenses, what is the expected value of each insured customer?
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Mathematics, 21.06.2019 15:50
If the dimensions of a rectangular prism are 5 ft x 3.5 ft x 2 ΕΏt, what is the surface area?
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Mathematics, 21.06.2019 20:00
Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.
Answers: 1
Mathematics, 22.06.2019 00:50
E. which of the following is not a possible probability? a. 25/100 b. 1.25 c. 1 d. 0
Answers: 1
The u. s. national toxicology program (ntp) studies the toxicity and carcinogenicity of agents poten...
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