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Question: the time required to assemble an electronic component is normally...

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The time required to assemble an electronic component is normally distributed with a mean and a standard deviation of 21 minutes and 10 minutes, respectively. [You may find it useful to reference the z table.] a. Find the probability that a randomly picked assembly takes between 13 and 22 minutes. (Round value to 2 decimal places and final answer to 4 decimal places. Probability b. It is unusual for the assembly time to be above 35 minutes or below 8 minutes. What proportion of assembly times fall in these unusual categories? (Round value to 2 decimal places and final answer to 4 decimal places.) Proportion of assembly times
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