7.50 Antigens for a parasitic roundworm in birds. Ascaridiagalli is a parasitic roundworm that attacks the intestines ofbirds, especially chickens and turkeys. Scientists are work-ing on a synthetic vaccine (antigen) for the parasite. Thesuccess of the vaccine hinges on the characteristics of DNAin peptide (protein) produced by the antigen. In the jour-nal Gene Therapy and Molecular Biology (June 2009), sci-entists tested alleles of antigen-produced protein for levelof peptide. For a sample of 4 alleles, the mean peptidescore was 1.43 and the standard deviation was .13.a. Use this information to construct a 90% confidence in-terval for the true mean peptide score in alleles of theantigen-produced protein.b. Interpret the interval for the scientists.c. What is meant by the phrase “90% confidence"?

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Answered: 7.50 Antigens for a parasitic roundworm…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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2. A psychologist at a private mental hospital was asked to determine whether there was a clear difference in the length of stay for patients with different categories of diagnosis. Looking at the last four patients in each of the three major categories, the results (in terms of weeks of stay) were as follows: Diagnosis Category Affective Disorders Cognitive Disorders Drug-Related Conditions 7 12 8 6 8 10 5 9 12 6 11 10 Using alpha = 0.05, is there a…
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31% of all pygmy softshell tortoises have stripes on their shells. A herpetologist in Cititon collects a sample of 28 pygmy softshell tortoises and finds that 8 of them have stripes on their shells. Is there enough evidence to conclude, at a significance of alpha = 0.05, that the proportion of pygmy softshell tortoises in Cititon with stripes on their shells is less than 31%? What is the claim? What is the null hypothesis? What is the alternative hypothesis? What is the test statistic? What is/are the critical value(s)? Do we reject the null hypothesis? What conclusion do we draw? What is the P-value for the problem above?
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