A series of surveys in GARISSA, carried out from 1990 to 1998, asked random samples of men and women aged 75 to estimate whether or not they would survive to the age of 85. Ten years after each survey the actual numbers surviving in each cohort were determined. All the sample sizes were large. The table summarizes the data. MenWomenYear of surveyPercentage estimating they would survive to age 85Percentage actually surviving to age 85Percentage estimating they would survive to age 85Percentage actually surviving to age 85199039.627.045.944.2199238.927.843.146.6199441.329.446.545.1199639.230.246.245.2199839.833.248.647.4 i). Describe what the data show about actual survival rates for men and women over time. ii). Describe what the data show about estimated survival rates for men and women over time. Compare the abilities of men and women to estimate their survival rates.

The objective of the question is to analyze the data provided in the table and describe the trends…

Answered: A series of surveys in GARISSA, carried…

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A series of surveys in GARISSA, carried out from 1990 to 1998, asked random samples of men and women aged 75 to estimate whether or not they would survive to the age of 85. Ten years after each survey the actual numbers surviving in each cohort were determined. All the sample sizes were large. The table summarizes the data.

	Men	Women
Year of survey	Percentage estimating they would survive to age 85	Percentage actually surviving to age 85	Percentage estimating they would survive to age 85	Percentage actually surviving to age 85
1990	39.6	27.0	45.9	44.2
1992	38.9	27.8	43.1	46.6
1994	41.3	29.4	46.5	45.1
1996	39.2	30.2	46.2	45.2
1998	39.8	33.2	48.6	47.4

i). Describe what the data show about actual survival rates for men and women over time.
ii). Describe what the data show about estimated survival rates for men and women over time.

Compare the abilities of men and women to estimate their survival rates.

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