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Part $1$

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

$1$

$2$

$3$

$4$

$5$

Check minibar

$98$

$\%$

$1\mathrm{.}6$

$1\mathrm{.}5$

$1\mathrm{.}5$

$1\mathrm{.}5$

$1\mathrm{.}5$

Make one bed

$88$

$\%$

$2\mathrm{.}3$

$2\mathrm{.}4$

$2\mathrm{.}1$

$2\mathrm{.}3$

$2\mathrm{.}4$

Vacuum floor

$115$

$\%$

$1\mathrm{.}7$

$2\mathrm{.}0$

$1\mathrm{.}8$

$1\mathrm{.}5$

$1\mathrm{.}5$

Clean bath

$98$

$\%$

$3\mathrm{.}5$

$3\mathrm{.}7$

$3\mathrm{.}7$

$3\mathrm{.}7$

$3\mathrm{.}3$

Assume a $10\%$ allowance factor.$$

Part $2$

The standard time for this process$=$

$$

enter your response here minutes $($round your response to two decimal$$ places$).$