The time required to assemble an electronic component is normally distributed with a mean and a standard deviation of 20 minutes and 14 minutes, respectively. Use Table 1. a. Find the probability that a randomly picked assembly takes between 17 and 22 minutes. (Round "z" value to 2 decimal places and final answer to 4 decimal places.) Probability b. It is unusual for the assembly time to be above 38 minutes or below 2 minutes. What proportion of assembly times fall in these unusual categories? (Round "z" value to 2 decimal places and final answer to 4 decimal places.) Proportion of assembly times
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2143\) For 22 minutes: \(Z = \frac{22 - 20}{14} = 0.1429\) Show more…
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