Question

s be capable of achieving appropriate maximum speeds. To monitor this, Mogul executives take samples of ten Eagletrons at a time. For each sample, they determine the average maximum speed and the range of the maximum speeds within the sample. They repeat this with 35 samples to obtain 35 sample means and 35 ranges. They find that the average sample mean is 103.50 miles per hour, and the average range is 4.00 miles per hour. Using these results, the executives decide to establish an R-chart. They would like this chart to be established so that when it shows that the range of a sample is not within the control limits, there is only approximately a 0.0027 probability that this is due to natural variation. The control limits for the chart based on the above requirement for the given information are: UCL Subscript Upper R overbar = nothing miles per hour (round the reponse to three decimal places). amison Kovach Supply Company manufactures paper clips and other office products. Although inexpensive, paper clips have provided the firm with a high margin of profitability. Sample size is 200 . Results are given for the last 10 samples.                                                                                                                         Sample 1 2 3 4 5 6 7 8 9 10 Defectives 4 8 3 5 6 5 4 5 2 11 The type of control chart that is best to monitor this process is ▼ c minus chart x overbar minus chart p minus chart. Eagletrons are all-electric automobiles produced by Mogul Motors, Inc. One of the concerns of Mogul Motors is that the Eagletrons be capable of achieving appropriate maximum speeds. To monitor this, Mogul executives take samples of ten Eagletrons at a time. For each sample, they determine the average maximum speed and the range of the maximum speeds within the sample. They repeat this with 35 samples to obtain 35 sample means and 35 ranges. They find that the average sample mean is 103.50 miles per hour, and the average range is 4.00 miles per hour. Using these results, the executives decide to establish an R-chart. They would like this chart to be established so that when it shows that the range of a sample is not within the control limits, there is only approximately a 0.0027 probability that this is due to natural variation. The control limits for the chart based on the above requirement for the given information are: UCL Subscript Upper R overbar = nothing miles per hour (round the reponse to three decimal places). amison Kovach Supply Company manufactures paper clips and other office products. Although inexpensive, paper clips have provided the firm with a high margin of profitability. Sample size is 200 . Results are given for the last 10 samples.                                                                                                                          Sample 1 2 3 4 5 6 7 8 9 10 Defectives 4 8 3 5 6 5 4 5 2 11 The type of control chart that is best to monitor this process is ▼ c minus chart x overbar minus chart p minus chart.

Answer 1

Answer:

Mogul executives takes samples of n=8 eagletrons at a time.

They found that the average is 3.25 mph.

For n = 8,

D4 =1.864(table value)

D3=0.136(table value)

The upper and lower control limits are found as

UCL =1.864 ×3.25= 6.058

LCL = 0.136 ×3.25= 0.442