Question: In a study of larval development in the tufted apple budmoth (Platynota idatusalis), an entomologist measured the head widths of 50 larvae. All 50 larvae

In a study of larval development in the tufted apple budmoth (Platynota idatusalis), an entomologist measured the head widths of 50 larvae. All 50 larvae had been reared under identical conditions and had moulted six times. The mean head width was 1.20 mm and the standard deviation was 0.14 mm. Construct a 90% confidence interval for the population mean.17

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