A job consists of three elements. Fifteen observations for each element were timed, and the resulting data are shown in the following table. A performance rating factor $($RF$)$ has also been assigned for each element, as shown in the table. The job has an allowance of $10\%$ of normal time.

Element

Performance Rating $(\%)$ Average Element Time $($in minutes$)$

# $1804$

# $2906$

# $31053$

Use the information in Scenario $2\mathrm{.}3.$ What is the normal time for job element #$1?$

greater than or equal to $6$ minutes

less than $6$ minutes but greater than or equal to $4\mathrm{.}5$ minutes

less than $4\mathrm{.}5$ minutes but greater than or equal to $3$ minutes

less than $3$ minutes