bio statistics

Q2 (1 point) Mosquitoes contribute to more human deaths than any other organism, because they transmit diseases such as malaria, dengue fever, and yellow fever. Some of these diseases develop or grow inside the mosquito-a process that can take some time. Therefore, one possible strategy to reduce transmission of disease is to cause mosquitos to die slightly sooner, leaving insufficient time for the disease to develop. A team of researchers tested the idea by infecting mosquitos with a fungus (Metarhizum anisopliae) that reduces the life span of the insect. In addition, they developed a transgenic strain of fungus that carries a gene for scorpine, a protein from scorpion venom known to inhibit the gamete stages of malaria. They compared three groups of mosquitoes: a "control" group that was not treated with fungus, a "wild type" group that was infected with unmodified fungus, and a "scorpine" group that was infected with the transgenic fungus. Each mosquito was infected with malaria. The response variable was the number of sporozoites (infectious cells of malaria) in the salivary glands of the mosquitoes. Prior to sending you the data for analyses the researchers performed a square root transformation. Here are the data: Group Mean SD n Control 8.835 0.569 15 Wild Type 6.165 0.418 12 Scorpine 4.639 0.427 11 Conduct a statistical analysis to determine whether the treatments are likely to affect the lifespan of mosquitoes, and if so, which treatments are likely to result in the longest and shortest lifespans. Perform the best test possible and assume any assumptions are met. State: a) The most likely reason why the researchers performed a square root transformation. PEOPLE OFTEN U b) The null and alternate hypotheses. c) The best statistical test(s) and any assumptions made. d) The test statistic(s) and your calculations. e) The degrees of freedom and critical value(s). f) The P value(s). g) A conclusion with respect to the null and scientific hypotheses. h) The proportion of the variance in the dataset that is explained by the treatment effect. Time left Hide 13:15:53