Question: ANSWER THE QUESTION URGENTLY QUESTION 3 (a) Flexible pressure sensor manufactured by Tekscan company have lifetime which is normally distributed with mean 24000 hours and

ANSWER THE QUESTION URGENTLY

QUESTION 3 (a) Flexible pressure sensor manufactured by Tekscan company have lifetime which is normally distributed with mean 24000 hours and standard deviations 4000 hours. Find the probability that flexible pressure sensor by Tekscan company selected at random has a lifetime between 22500 and 26500 hours. If 10% of the flexible pressure sensor by Tekscan company have low lifetime, find the maximum lifetime it can achieve (in days). (b) The research and development (R&D) department of Kiki Sdn Bhd aims to produce mechanical shafts that can last longer than 5 years. Based on a previous record, 6% of the produced mechanical shafts fail to last longer than the targeted years. If 300 mechanical shafts are selected randomly, find the probability that 25 fails to last longer than 5 years

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