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Following are observed frequencies. The null hypothesis is , .
Test the hypothesis that the distribution of the observed frequencies is as given by the nul hypothesis. Use the level of significance.
Centenarians
Individuals who have reached the age of 100 years or older.
Cognitive Decline
Gradual loss of cognitive functions such as memory, attention, and the ability to learn new information.
Huntington's Disease
A hereditary neurodegenerative disorder characterized by movement, cognitive, and psychiatric disturbances.
Alzheimer's Disease
A progressive neurodegenerative disorder characterized by memory loss, cognitive impairment, and functional decline.
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