3. A new concrete mix is being designed to provide adequate compressive strength for concrete blocks. The specification

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3 A New Concrete Mix Is Being Designed To Provide Adequate Compressive Strength For Concrete Blocks The Specification 1 (74.36 KiB) Viewed 39 times

3. A new concrete mix is being designed to provide adequate compressive strength for concrete blocks. The specification for a particular application calls for the blocks to have a mean compressive strength µ greater than 1350 kPa. A sample of 100 blocks is produced and tested. Their mean compressive strength is 1356 kPa and their standard deviation is 70 kPa. A. What is the most appropriate null hypothesis regarding the population mean u. Indicate the alternate hypothesis as well. Find the P-value. B. Can you conclude that the blocks meet the specification? Or are you convinced that they do not? Explain your answer.