Question

Background: Morris Saldov conducted a study in Eastern and Central Newfoundland in 1988 to examine public...

Background: Morris Saldov conducted a study in Eastern and Central Newfoundland in 1988 to examine public attitudes towards social spending. In particular, the study tried to determine if knowing someone on public assistance (yes, no) affected one's views on social spending (too little, about right, too much). The data from the study is summarized in the table below.

Yes No Total
Too little 41 7 48
About right 17 15 32
Too much 11 9 20
Total 69 31 100

Source: Morris Saldov, Public Attitudes to Social Spending in Newfoundland," Canadian Review of Social Policy, 26, November 1990, pages 10-14.

Directions: Conduct a chi-square test for independence to determine if the association between knowing someone on public assistance and views on social spending is statistically significant.

  1. Choose the correct null and alternative hypotheses.
    • H0: There is an association between knowing someone on public assistance and views on social spending.
      Ha There is no association between knowing someone on public assistance and views on social spending.
    • H0: There is no association between knowing someone on public assistance and views on social spending.
      Ha: There is an association between knowing someone on public assistance and views on social spending.
  2. Compute the test statistic.

    Complete the following table of expected counts. (Round your answers to 2 decimal places).
    Yes No
    Too little
    About right
    Too much

    Compute the value of the test statistic. (Round your answer to 2 decimal places.)

    χ2=
  3. Compute the p-value. (Round your answer to 4 decimal places.)

    p-value =
  4. Interpret the results of the significance test. Use a significance level of alpha = 0.05
    • The p-value provides strong evidence against the null hypothesis. The association between knowing someone on public assistance and attitudes towards social spending is statistically significant.
    • The p-value provides little evidence against the null hypothesis. The association between knowing someone on public assistance and attitudes towards social spending is not statistically significant.

Homework Answers

Answer #1

The statistical software output for this problem is:

From above output:

Hypotheses: Option B

Table of expected count:

Yes No
TL 33.12 14.88
AAR 22.08 9.92
TM 13.8 6.2

Test statistic = 11.65

P - value = 0.003

The p-value provides strong evidence against the null hypothesis. The association between knowing someone on public assistance and attitudes towards social spending is statistically significant.

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