The time required to assemble an electronic component is normally distributed with a mean and standard deviation of 23 minutes and 11 minutes, respectively. Required: (Provide all your workings. Round "z" value to 2 decimal places and final answer to 4 decimal places.) Find the probability that a randomly picked assembly takes between 14 and 27 minutes. It is unusual for the assembly time to be above 43 minutes or below 8 minutes. What proportion of assembly times fall in these unusual categories?
Added by Sara A.
Step 1
- For 14 minutes: \(z = \frac{14 - 23}{11} = -0.82\) - For 27 minutes: \(z = \frac{27 - 23}{11} = 0.36\) Show more…
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