Proportion of patrons, The manager of a local gym has

Proportion of patrons

Reference no: EM13990276

The manager of a local gym has determined that the length of time patrons spend at the gym is a normally distributed variable with a mean of 80 minutes and a standard deviation of 20 minutes.

(a) What proportion of patrons spend more than two hours at the gym?

(b) What proportion of patrons spend less than one hour at the gym?

Note: Calculate the results for (a)-(c) using the z-table and then the appropriate Excel

function (i.e. NORMDIST or NORMINV).

Reference no: EM13990276

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