Use the following inventory information for the MRP problems that follow regarding Z:

Lot Size:

$4,000$

On Hand:

$800$

Safety Stock:

$0$

Allocated:

$0$

Lead Time:

$1$

Bill of Material

Regardless of the values for $Y$ computed above, use the following information going forward. $($That is$,$ do not change your earlier answers but use the new values going forward.$)$ Note: These are not the correct answers for the questions above.

Planned order releases of $1,200$ for $x$ in periods four, five, and seven.

Why am I giving you this changed information? Without this, if you made a mistake in any of the earlier grids, all the remaining grids would automatically be incorrect. As a result, you would get very few points on the exam. In other words, this is meant to$....$

$\backslash$table$[[x,1,2,3,4,5,6,7,8],[\backslash$table$[[$Gross$],[$Requirements$]],700,500,800,700,900,1,100,500,600],[$Scheduled$,,,,$a$,,,,],[$Receipts$,,,,,2,,,],[$Projected on$,,,,,,,,],[$Hand $($B$),,,,,,,,],[$Projected on$,,,,,,,,],[$Hand $($E$),,,,,,,,],[$Net Requirements,,,,$x,,a,,],[$Planned Order,,,,,,.,:$\text{'},],[$Receipts$,,,,,85,,,],[$Planned Order,,,,$1\mathrm{.}200,1\mathrm{.}200,,1200,],[$Releases$,,,,,,,,]]$

Question $14(2$ points$)$

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Which of the following periods have planned gross requirements for Z$?$ Check all that apply.