A new concrete mix is being designed to provide adequate compressive strength for concrete blocks. The specification
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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 test is made of H0 : μ ≤ 1350 versus H1 : μ > 1350.
a. Find the P-value.
b. Do you believe it is plausible that the blocks do not meet the specification, or are you convinced that they do? Explain your reasoning.
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a X 1356 s 70 n 100 The null and alternate hypothese...View the full answer
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