In: Statistics and Probability
The following data represent the level of happiness and level of health for a random sample of individuals from the General Social Survey. A researcher wants to determine if health and happiness level are related. Use the αα = 0.05 level of significance to test the claim.
Health
Excellent | Good | Fair | Poor | |
Very Happy | 271 | 261 | 82 | 20 |
Pretty Happy | 247 | 567 | 231 | 53 |
Not Too Happy | 33 | 103 | 92 | 36 |
*Source: General Social Survey
1) Determine the null and alternative hypotheses. Select the correct pair.
2) Determine the test Statistic. Round your answer to two decimals.
χ2 =
3) Determine the p-value. Round your answer to four decimals.
p-value =
4) Make a decision.
5) Pick a conclusion.
Excel:
Data --> Megastat --> Chi square --> Chi-square Contingency Table Test for Independence
Output:
1)
Ho:Health and happiness are independent
Ha: Health and happiness are dependent
2)
χ2 = 182.17
3)
P-value = 0.0000
4)
Reject the null hypothesis (since P-value = 0 <0.05=alpha)
5)