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Cupcakes are sensitive to temperature and humidity. Cupcakes must be cooked at a consistent temperature. To test...

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General Management

Cupcakes are sensitive totemperature and humidity. Cupcakes must be cooked at a consistenttemperature. To test the oven before using it to bake Cupcakes, wetook temperature samples at regular intervals. The followingmeasurements, in degrees Celsius, are the results.

Sample

X1

X2

X3

X4

X5

X6

X7

X8

1

172

163

164

175

168

161

168

160

2

172

162

163

173

172

174

172

176

3

165

179

179

178

160

169

165

172

4

163

174

167

177

176

173

178

175

a. Compute the upper controllimit of x bar chart.

b. Compute the lower controllimit of x bar chart.

c. Compute the upper controllimit of R chart.

d. Compute the lower controllimit of R chart.

e. is the process undercontrol

Answer & Explanation Solved by verified expert
3.6 Ratings (428 Votes)
Numberof observations in sample 8From the reference table for xbar and rbar chartA2 0373D3 0136D4    See Answer
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