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Course evaluation. Find the corresponding z-value in the following scenario: It takes 30 minutes to prepare a dish. The standard deviation is reported as 2.4

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Course evaluation. Find the corresponding z-value in the following scenario: It takes 30 minutes to prepare a dish. The standard deviation is reported as 2.4 minutes. it of Sam is studying the chances that it takes less than 28 minutes to prepare that dish. **Report the z-value only

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