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also considered. A lioness could initiate a chase (be the first one to charge the prey), or she could participate and join the chase after it has been initiated. Data from the article are summarized in the accompanying table. Position Initiate Chase Participate in Chase Center Wing Role 28 (a) Is there evidence of an association between position and role? Test the relevant hypotheses using a -0.01. State the null and alternative hypotheses. O Ho: Role category proportions are not all the same for lionesses who are in the center of the line or on the wing. H: Role category proportions are the same for lionesses who are in the center of the line or on the wing. O Ho: Position and role are not independent. H: Position and role are independent. Ho: Position and role are independent. H: Position and role are not independent. OH: Role category proportions are the same for lionesses who are in the center of the line or on the wing H: Role category proportions are not all the same for lionesses who are in the center of the line or on the wing. Calculate the test statistic. (Round your answer to two decimal places.) What is the P-value for the test? (Use a statistical computer package to calculate the P-value. Round your answer to four decimal places.) P-value- What can can number O Reject Ho. There is convincing evidence that there is an association between position and role. Do not reject Ho. There is not convincing evidence that there is an association between position and role. Do not reject Hg. There is convincing evidence that there is an association between position and role. Reject Ho. There is not convincing evidence that there is an association between position and role. (b) What assumptions about how the data were collected must be true for the chi-square test to be an appropriate way to analyze t The data was selected through convenience sampling. The data was selected through random sampling. More than 30 of each group were selected for the sample. The same number of each in was selected for the sample data? (Select all that apply.)

also considered. A lioness could initiate a chase (be the first one to charge the prey), or she could participate and join the chase after it has been initiated. Data from the article are summarized in the accompanying table. Position Initiate Chase Participate in Chase Center Wing Role 28 (a) Is there evidence of an association between position and role? Test the relevant hypotheses using a -0.01. State the null and alternative hypotheses. O Ho: Role category proportions are not all the same for lionesses who are in the center of the line or on the wing. H: Role category proportions are the same for lionesses who are in the center of the line or on the wing. O Ho: Position and role are not independent. H: Position and role are independent. Ho: Position and role are independent. H: Position and role are not independent. OH: Role category proportions are the same for lionesses who are in the center of the line or on the wing H: Role category proportions are not all the same for lionesses who are in the center of the line or on the wing. Calculate the test statistic. (Round your answer to two decimal places.) What is the P-value for the test? (Use a statistical computer package to calculate the P-value. Round your answer to four decimal places.) P-value- What can can number O Reject Ho. There is convincing evidence that there is an association between position and role. Do not reject Ho. There is not convincing evidence that there is an association between position and role. Do not reject Hg. There is convincing evidence that there is an association between position and role. Reject Ho. There is not convincing evidence that there is an association between position and role. (b) What assumptions about how the data were collected must be true for the chi-square test to be an appropriate way to analyze t The data was selected through convenience sampling. The data was selected through random sampling. More than 30 of each group were selected for the sample. The same number of each in was selected for the sample data? (Select all that apply.)

MATLAB: An Introduction with Applications
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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An article discusses the different roles taken by lionesses as they attack and capture prey. The authors were interested in the effect of the position in line as stalking occurs. An individual lioness may be in the center of the line or on the wing (end of the line) as they advance toward their prey. In addition to position, the role of the lioness was also considered. A lioness could initiate a chase (be the first one to charge the prey), or she could participate and join the chase after it has been initiated. Data from the article are summarized in the accompanying table. Position Center Wing Initiate Chase Participate in Chase 28 Role 69 O Ho: Position and role are not independent. H₂: Position and role are independent. 49 (a) Is there evidence of an association between position and role? Test the relevant hypotheses using a = 0.01. State the null and alternative hypotheses. O Ho: Role category proportions are not all the same for lionesses who are in the center of the line or on the wing. H₂: Role category proportions are the same for lionesses who are in the center of the line or on the wing. Ho: Position and role are independent. H₂: Position and role are not independent. 44 O Ho: Role category proportions are the same for lionesses who are in the center of the line or on the wing. H₂: Role category proportions are not all the same for lionesses who are in the center of the line or on the wing. Calculate the test statistic. (Round your answer to two decimal places.) x²= = What is the P-value for the test? (Use a statistical computer package to calculate the P-value. Round your answer to four decimal places.) P-value Enter a number. What can you conclude? O Reject Ho. There is convincing evidence that there is an association between position and role. Do not reject Ho. There is not convincing evidence that there is an association between position and role. Do not reject Ho. There is convincing evidence that there is an association between position and role. O Reject Ho. There is not convincing evidence that there is an association between position and role. (b) What assumptions about how the data were collected must be true for the chi-square test to be an appropriate way to analyze these data? (Select all that apply.) The data was selected through convenience sampling. The data was selected through random sampling. More than 30 of each group were selected for the sample. The same number of each group was selected for the sample. The data was selected through systematic sampling.
Transcribed Image Text:An article discusses the different roles taken by lionesses as they attack and capture prey. The authors were interested in the effect of the position in line as stalking occurs. An individual lioness may be in the center of the line or on the wing (end of the line) as they advance toward their prey. In addition to position, the role of the lioness was also considered. A lioness could initiate a chase (be the first one to charge the prey), or she could participate and join the chase after it has been initiated. Data from the article are summarized in the accompanying table. Position Center Wing Initiate Chase Participate in Chase 28 Role 69 O Ho: Position and role are not independent. H₂: Position and role are independent. 49 (a) Is there evidence of an association between position and role? Test the relevant hypotheses using a = 0.01. State the null and alternative hypotheses. O Ho: Role category proportions are not all the same for lionesses who are in the center of the line or on the wing. H₂: Role category proportions are the same for lionesses who are in the center of the line or on the wing. Ho: Position and role are independent. H₂: Position and role are not independent. 44 O Ho: Role category proportions are the same for lionesses who are in the center of the line or on the wing. H₂: Role category proportions are not all the same for lionesses who are in the center of the line or on the wing. Calculate the test statistic. (Round your answer to two decimal places.) x²= = What is the P-value for the test? (Use a statistical computer package to calculate the P-value. Round your answer to four decimal places.) P-value Enter a number. What can you conclude? O Reject Ho. There is convincing evidence that there is an association between position and role. Do not reject Ho. There is not convincing evidence that there is an association between position and role. Do not reject Ho. There is convincing evidence that there is an association between position and role. O Reject Ho. There is not convincing evidence that there is an association between position and role. (b) What assumptions about how the data were collected must be true for the chi-square test to be an appropriate way to analyze these data? (Select all that apply.) The data was selected through convenience sampling. The data was selected through random sampling. More than 30 of each group were selected for the sample. The same number of each group was selected for the sample. The data was selected through systematic sampling.
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