It is important that face masks used by freighters be able t

It is important that face masks used by freighters be able to withstand high temperatures because firefighters commonly work In temperatures of 200-500 degree F. In a test of one type of mask, 9 or 45 mask, M lenses pop out at 250 degree. Construct a 90% upper confidence limit for the proportion of masks of this type whose lenses would pop out at 250 degree. (Round your answers to four decimal places.) you may need to use the appropriate table In the Appendix of Tables to answer this question

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