After You Calculate the Sample Size Needed to Estimate a Population

question 59

Multiple Choice

After you calculate the sample size needed to estimate a population proportion to within 0.05, your statistics lecturer tells you the maximum allowable error must be reduced to just 0.025. If the original calculation led to a sample size of 400, the sample size will now have to be:

• A)800.
• B)200.
• C)4000.
• D)1600.

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Definitions:

Hip Fractures

A serious injury involving a break in the upper portion of the femur (thigh bone) near the hip joint, frequently occurring in older adults due to falls or osteoporosis.

Spine Fractures

Breaks in the bones of the spine, often caused by trauma, osteoporosis, or diseases, which can lead to pain and potentially serious complications.

Immunological Theory

A theory of aging that holds that the immune system is preset to decline by an internal biological clock.

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