A biologist is studying the composition of birds on a lake and counts 61 ducks, 17geese, 11 cranes, 15 swans, and 6 herons. From previous studies performed aroundthe same time of the year, she expects 50% of the birds to be ducks, 23% to begeese, 12% to be cranes, 10% to be swans, and 5% to be herons. What are thecorrect null and alternative hypotheses for performing a chi-square goodness of fittest? Select one.Null Hypothesis Ho: The distribution of birds observed does not follow thedistribution from previous studies.Alternative Hypothesis H1: The distribution of birds observed follows thedistribution from previous studies.Null Hypothesis Ho: The distribution of birds observed follows the Student's t-distribution.Alternative Hypothesis H1: The distribution of birds observed does not followthe Student's t-distribution.Null Hypothesis Ho: The distribution of birds observed follows the Normaldistribution.Alternative Hypothesis H1: The distribution of birds observed does not followthe Normal distribution.Null Hypothesis Ho: The distribution of birds observed follows the distributionfrom previous studies.Alternative Hypothesis H1: The distribution of birds observed does not followthe distribution from previous studies.

The test is to check whether the distribution of birds observed follows the distribution from…

Answered: A biologist is studying the composition…

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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The National Academy of Science reported that 33% of research in mathematics is published by US authors. The mathematics chairperson of a prestigious university wishes to test the claim that this percentage is no longer 33%. He has no indication of whether the percentage has increased or decreased since that time. He surveys a simple random sample of 280 recent articles published by reputable mathematics research journals and finds that 108 of these articles have US authors. Does this evidence support the mathematics chairperson’s claim that the percentage is no longer 33%? Use a 0.01 level of significance. Step 1 of 3 : State the null and alternative hypotheses for the test. Fill in the blank below. H0: p = 0.33 Ha: p___ 0.33
Ch. 14
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The National Academy of Science reported that 33 % of research in mathematics is published by US authors. The mathematics chairperson of a prestigious university wishes to test the claim that this percentage is no longer 33 %. He has no indication of whether the percentage has increased or decreased since that time. He surveys a simple random sample of 280 recent articles published by reputable mathematics research journals and finds that 108 of these articles have US authors. Does this evidence support the mathematics chairperson's claim that the percentage is no longer 33 % ? Use a 0.01 level of significance. Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Answer Ho :p = 0.33 Ha P O # ο ο ο HAV O < 0.33 Tables Keypad Keyboard Shortcuts
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