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1) A furniture manufacturer has found that the time spent by workers assembling a particular table follows a normal distribution with a mean of 150

1) A furniture manufacturer has found that the time spent by workers assembling a particular table follows a normal distribution with a mean of 150 minutes and a standard deviation of 40 minutes.

a.The probability is 0.9 that a randomly chosen table requires more than how many minutes to assembler?

b.What is the probability that a randomly chosen table can be assembled in fewer than 183.6 minutes?

c. A sample of 10 tables are chosen at random.What is the probability that the mean time for assembly for the sample of 10 tables will be fewer than 183.6 minutes?

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