Eclosion refers to the emergence of an adult insect from an egg. The following data on eclosion rates when nymphs were exposed to heat for various durations was extracted from the article "High Temperature Determines the Ups and Downs of Small Brown Planthopper Laodelphax Striatellus Population" (Insect Science, 2012: 385-392).

Carry out a chi-squared test to decide whether it is plausible that eclosion rate does not depend on exposure duration (the cited article included summary information from the test).

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Duration (d) Sample size 120 41 4744 46 42 10 #Emerged: 101 38 4440 3835 7 023 5 10 15