A Researcher Is Interested in Determining If the Model Used

question 99

Multiple Choice

A researcher is interested in determining if the model used for the distribution of main economic concerns in the year 2003 for residents in a certain county can still be used in the year 2004.A sample of 370 residents from that county was surveyed in 2004.The following table displays the model for the distribution of economic concerns for the year 2003 and the observed number of sampled respondents in the survey for the same economic concerns for the year 2004. Under the null hypothesis that the model from the previous year can still be used,what is the distribution of the chi-square statistic?

• A)  ²(1)
• B)  ²(2)
• C)  ²(3)
• D)  ²(4)

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Definitions:

Sleep Problems

Disorders or conditions that disrupt normal sleep patterns, leading to decreased quality or quantity of sleep.

Cardiovascular Disease

A class of diseases that involve the heart or blood vessels, including coronary artery disease, hypertension, and stroke, among others.

Heart Attack

A medical emergency characterized by the death of heart muscle due to the sudden blockage of a coronary artery, leading to symptoms like chest pain, shortness of breath, and nausea.

Sympathetic Nervous System

Part of the autonomic nervous system that activates what is often termed the fight or flight response.