Insurance Companies Track Life Expectancy Information to Assist in Determining

question 37

Essay

Insurance companies track life expectancy information to assist in determining the cost of life insurance policies. The insurance company knows that, last year, the life expectancy of its policyholders was 77 years. They want to know if their clients this year have a longer life expectancy, on average, so the company randomly samples some of the recently paid policies to see if the mean life expectancy of policyholders has increased. The insurance company will only change their premium structure if there is evidence that people who buy their policies are living longer than before.

$\begin{array}{|l|l|l|l|l|l|l|l|l|l|}\hline 86 & 75 & 83 & 84 & 81 & 77 & 78 & 79 & 79 & 81 \\\hline 76 & 85 & 70 & 76 & 79 & 81 & 73 & 74 & 72 & 83 \\\hline\end{array}$

-For more accurate cost determination, the insurance companies want to estimate the life expectancy to within one year with 95% confidence. How many randomly selected records would they need to have?

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Definitions:

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Pertaining to Nigeria, a country located in West Africa, known for its diverse cultures, languages, and as one of the largest economies and populations on the continent.

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The system of terms and classifications societies use to refer to relatives and define relationships among family members.

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Variations or distinctions found within family lineages or ancestries, which can impact inheritance, cultural identity, and social standing.

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Objects, animals, or plants considered by certain societies to have spiritual significance and often acting as emblems for clans or families.