Mandatory Health Care In 2006, a new law passed in Massachusetts would require a

Question

Mandatory Health Care In 2006, a new law passed in Massachusetts would require all residents to have health insurance. Low-income residents would get state subsidies to help pay insurance premiums, but everyone would pay something for health services. The plan would penalize people without any insurance and charge fees to employers who don't provide coverage. An ABC News/Washington Post poll4 involving n = 1027 adults nationwide asked the question, "Would you support or oppose this plan in your state?" The data that follows is based on the results of this study. a. Are there significant differences in the proportions of those surveyed who support, oppose, and are unsure about this plan among Democrats, Independents, and Republicans? Use alpha = 05. b. If significant differences exist, describe the nature of the differences by finding the proportions of those who support, oppose, and are unsure for each of the given affiliations.

Explanation / Answer

a)

In the assumption, the probability of Support, Oppose and Unsure are same that is 1/3. Hence,

Therefore, Chi-square=407.56.

The p-value of Chi-square=407.56 at 9-1=8 df is 0.0000. Hence, we can conclude that there is a significant difference in the proportion of those surveyed who support, oppose and unsure about this plan among Democrats, Independence, and Republics at 0.05 level of significance.

b)

54% of the population supports the plan whereas 41% of the population oppose the plan and 5% are unsure among the Democrats, Independence, and Republics.

Observed (O) Affiliation Support Oppose Unsure Total Democrates 256 163 22 441 Independence 60 40 5 105 Republicans 235 222 24 481

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