Trish Attends an Aerobics Class Four Times Each Week

question 101

Short Answer

Trish attends an aerobics class four times each week. She would like to estimate the mean number of minutes of continuous exercise until her heart reaches 90 beats per minute. If it can be assumed that = 1.7 minutes, how large a sample is needed so that it will be possible to assert with 99% confidence that the sample mean has a margin of error of at most 0.62 minutes?
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Definitions:

Mental Age

A measure of an individual's mental attainment based on the age at which it takes the average individual to reach that same level of attainment.

Original

Pertaining to something that is the first of its kind or unique in its context.

Mental Age

A measure of an individual's mental attainment based on the age at which it takes an average individual to reach that same level of attainment.

Chronological Age

The actual age of a person measured in years from the date of birth.