please solve equation Question. 3 (Marks 5) Suppose Quality in charge in Aquafin

Question

please solve equation

Question. 3 (Marks 5) Suppose Quality in charge in Aquafina Company want to convert their raw data into frequency table to see the performance of process. You are hired to help him develop this table. Data for last 30 days is given as. 142 125 137 125 136 124 126 132 134 122 138 123 234 127 140 131 142 - 36 126 129 132 135129 135 (IMCO,2017) a. Design frequency distribution table from given data with size of class 3. (Marks 2) b. Design frequency distribution table from data with size of class 4. (Marks 1) c. Compare results of a and b and give reason. (Marks 2)

Explanation / Answer

a)

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b)

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c) When comparing a & b, the number of class intervals are less in b due to the increased width of the class limits in b .

Class interval Frequency 122-124 3 124-126 3 126-128 3 128-130 3 130-132 1 132-134 2 134-136 5 136-138 2 138-140 1 140-142 2 142-144 2

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