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Is the process in a state of statistical control

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Reference no: EM13946640

Scenario:

An advertising production team is charged with reducing the number and dollar amount of the advertising errors, with initial focus on the ran-in-error category. The team collects data, including the number of ads with errors, on a Monday-to-Saturday basis. The attached Excel File SH14-1 (attached) includes a table for the total number of ads and the number containing errors for a period of one month. Sundays are excluded because a special type of production is used for that day.

SH14.1

What is the first thing that the team from the advertising production department should do to reduce the number of errors? Explain

SH14.2

A) Construct the appropriate control chart for these data.

B) Is the process in a state of statistical control?

C) What should the team recommend as the next step to improve the process?

Day Ads with Errors Number of Ads
1 4 228
2 6 273
3 5 239
4 3 197
5 6 259
6 7 203
7 8 289
8 14 241
9 9 263
10 5 199
11 6 275
12 4 212
13 3 207
14 5 245
15 7 266
16 2 197
17 4 228
18 5 236
19 4 208
20 3 214
21 8 258
22 10 267
23 4 217
24 9 277
25 7 258

 

Reference no: EM13946640

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