Eyeglassomatic manufactures eyeglasses for different retailers. They test to see how many defective lenses they made...

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Eyeglassomatic manufactures eyeglasses for different retailers.They test to see how many defective lenses they made the timeperiod of January 1 to March 31. Table #11.2.4 gives the defect andthe number of defects.
Table #11.2.4: Number of Defective Lenses
Defect type
Number of defects
Scratch
5865
Right shaped - small
4613
Flaked
1992
Wrong axis
1838
Chamfer wrong
1596
Crazing, cracks
1546
Wrong shape
1485
Wrong PD
1398
Spots and bubbles
1371
Wrong height
1130
Right shape - big
1105
Lost in lab
976
Spots/bubble - interim
976
Do the data support the notion that each defect type occurs inthe same proportion? Test at the 10% level.

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3.7 Ratings (516 Votes)

null hypothesis Hoeach defect type occurs in thesame proportionalternate hypotheiss Haat least one type of defect occur indifferent proportiondegree of freedom categories1 13112for 12 df and 01 See Answer

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Defect type	Number of defects
Scratch	5865
Right shaped - small	4613
Flaked	1992
Wrong axis	1838
Chamfer wrong	1596
Crazing, cracks	1546
Wrong shape	1485
Wrong PD	1398
Spots and bubbles	1371
Wrong height	1130
Right shape - big	1105
Lost in lab	976
Spots/bubble - interim	976