R. Nielsen et al. compared 13,731 annotated genes from humans with their chimpanzee orthologs to identify genes that show evidence of positive selection. The researchers published their findings in "A Scan for Positively Selected Genes in the Genomes of Humans and Chimpanzees" (PLOS Biology, Vol. 3, Issue 6, pp. 976-985). A simple random sample of 14 tissue types yielded the following number of genes.
Answer to relevant QuestionsIn the article "The $350,000 Club" (The Business Journal, Vol. 24, Issue 14, pp. 80-82), J. Trunelle et al. examined Arizona public-company executives with salaries and bonuses totaling over $350,000. The following data ...A city planner working on bikeways designs a questionnaire to obtain information about local bicycle commuters. One of the questions asks how long it takes the rider to pedal from home to his or her destination. A sample of ...One-Sided One-Mean t-Intervals. Presuming that the assumptions for a one-mean t-interval are satisfied, we have the following formulas for (1 − α)-level confidence bounds for a population mean μ: Lower confidence bound: ...Refer to Procedure 8.1. a. Explain in detail the assumptions required for using the z-interval procedure. b. How important is the normality assumption? Explain your answer. x-bar = 50, n = 16, σ = 5, confidence level = 99% We provide a sample mean, sample size, population standard deviation, and confidence level. In each case, use the one-mean z-interval procedure to find a confidence interval ...
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