Problem $9-2($Algo$)$

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$[$The following information applies to the questions displayed below.$]$

An air$-$conditioning repair department manager has compiled data on the primary reason for $41$ service calls for the previous week, as shown in the table.

Job

Number Problem$/$

Customer Type Job

Number Problem$/$

Customer Type Job

Number Problem$/$

Customer Type

$301$ W$/$C $315$ W$/$C $329$ W$/$C

$302$ N$/$C $316$ N$/$R $330$ W$/$C

$303$ F$/$R $317$ W$/$C $331$ W$/$C

$304$ O$/$C $318$ N$/$R $332$ W$/$R

$305$ F$/$C $319$ N$/$R $333$ N$/$R

$306$ W$/$C $320$ N$/$R $334$ F$/$R

$307$ W$/$R $321$ F$/$R $335$ F$/$R

$308$ W$/$R $322$ N$/$C $336$ F$/$C

$309$ O$/$R $323$ F$/$R $337$ O$/$C

$310$ O$/$R $324$ O$/$C $338$ O$/$R

$311$ W$/$R $325$ W$/$C $339$ W$/$R

$312$ W$/$C $326$ N$/$R $340$ O$/$C

$313$ O$/$R $327$ F$/$R $341$ W$/$R

$314$ W$/$R $328$ N$/$R

Click here for the Excel Data File

Key: Problem type: Customer type:

N $=$ Noisy C $=$ Commercial customer

F $=$ Equipment failure R $=$ Residential customer

W $=$ Runs warm

O $=$ Odor

Problem $9-2$ Part a $($Algo$)$

a$.$ Using the data, prepare a check sheet for the problem types for each customer type.

$(1)$ Residential customer type

$(2)$ Commercial customer type