calculate the correlation coefficient for x$=4,3,6,5,8,6$ y$=4,6,8,4,9,8$

Assuming a firm has a hiring policy to fill three quarters of the open positions in job levels $2$ through $5$ through promotion, fill out the following table to

show the promotions and external hires the firm will use to fill the positions. Proceed column by column, computing all "Internal Promotions" to start.

Keep in mind that promoting a lower$-$level employee to the next level will cause an additional opening for a position in the lower level. This is not an

endorsement of any particular hiring policy.

Enter the full values you calculate$-$decimals and all. Values will be correctly rounded to the nearest whole number automatically. $($Decimal values of less

than $0\mathrm{.}5$ will be rounded down, while greater decimal values will be rounded up$.)$

Tim Smunt has been asked to evaluate two machines. After some investigation, he determines that they have the costs shown in the following table:

He is told to assume that:

The life of each machine is $3$ years.

The company thinks it knows how to make $8\%$ on investments no more risky than this one.

Labor and maintenance are paid at the end of the year.

The NPV for Machine $A=$$

$($round your response to the nearest whole number and include a minus sign if necessary$).$