Construct a 90 ci for the true proportion of masks of this

Reference no: EM13623969

It is important that face masks used by firefighters be able to withstand high temperatures because firefighters commonly work in temperatures of 200-500°F. In a test of one type of mask, 9 of 45 masks had lenses pop out at 250°. Construct a 90% CI for the true proportion of masks of this type whose lenses would pop out at 250°. (Round your answers to four decimal places.)

Reference no: EM13623969

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