The researcher is concerned that older persons may not be knowledgeable of the COFLU-20. As such, he is interested in investigating the association between the age of the respondents and their knowledge level. Table 2 below shows the knowledge level of respondents, by age group. Table 2 (image included) Conduct a test, at the 5% level of significance, to determine whether the data provided sufficient evidence to conclude that an association exists between age group and knowledge level. State the hypotheses to be tested: H0: H1: state the degrees of freedom for this test the p-value for this test, given that the chi-square test statistic, c2, is 11.029. state the conclusion for the test. Give reason for your answer.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
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The researcher is concerned that older persons may not be knowledgeable of the COFLU-20. As such, he is interested in investigating the association between the age of the respondents and their knowledge level. Table 2 below shows the knowledge level of respondents, by age group.

Table 2 (image included)

Conduct a test, at the 5% level of significance, to determine whether the data provided sufficient evidence to conclude that an association exists between age group and knowledge level.

  • State the hypotheses to be tested:

H0:

H1:

  • state the degrees of freedom for this test
  • the p-value for this test, given that the chi-square test statistic, c2, is 11.029.
  • state the conclusion for the test. Give reason for your answer.
Expert Solution
Step 1

Given information-

We have given a table showing knowledge level of respondents, by age group.

Significance level = 0.05

Chi-square test statistics = 11.029

We have to test that there is an association exists between age group and knowledge level.

Hypothesis Formulation-

Null Hypothesis, H0: There is no association exists between age group and knowledge level.

Alternate Hypothesis, Ha: There is an association exists between age group and knowledge level.

 

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