Question: QUESTION 1 (20 MARKS) a) A robot-operated assembly line is developed to produce a range of new products, which are color-coded black, white, red and

QUESTION 1 (20 MARKS) a) A robot-operated assembly line is developed to produce a range of new products, which are color-coded black, white, red and green. The assembly line is programmed to produce 11.76% black, 29.41% white, 7.06% red and 51.76% green items. A random sample of 180 items was taken and the following distribution was observed: Colour Black White Red Green Frequency 26 43 15 96 Can you conclude at the 5% level of significance that the assembly line needs adjustment? (10 marks)

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