In the textile industry c-charts can be used to monitor the number of Maws occurring in segments

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In the textile industry c-charts can be used to monitor the number of Maws occurring in segments of fabric. Construct a c-chart from the data set in DS 16.6.3, which records the number of flaws found in k = 25 fabric segments sampled at different times.
(a) Should you remove any points from the data set? What c-chart would you recommend be used to monitor future samples of fabric?
(b) How many Haws would need to be discovered in a future randomly selected fabric segment for the process to be considered to be out of control?
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