A hotel housekeeper, Alison Harvey, was observed five times on each of four task elements, as shown in the following table.

$$

Performance Observation $($minutes per cycle$)$

Element Rating $12345$

Check minibar $100\%$

$1\mathrm{.}41\mathrm{.}71\mathrm{.}41\mathrm{.}61\mathrm{.}5$

Make one bed $88\%$

$2\mathrm{.}22\mathrm{.}52\mathrm{.}12\mathrm{.}12\mathrm{.}4$

Vacuum floor $125\%$

$1\mathrm{.}81\mathrm{.}81\mathrm{.}81\mathrm{.}41\mathrm{.}7$

Clean bath $100\%$

$3\mathrm{.}63\mathrm{.}63\mathrm{.}53\mathrm{.}73\mathrm{.}3$

Assume a

$10\%$

allowance factor.