Consider the compressive strength data in Exercise
Chapter 9, Problem 126E(choose chapter or problem)
Consider the compressive strength data in Exercise 8-62.
(a) Use the sign test to investigate the claim that the median strength is at least 2250 psi. Use \(\alpha=0.05\).
(b) Use the normal approximation to test the same hypothesis that you formulated in part (a). What is the P-value for this test?
Equation Transcription:
Text Transcription:
alpha=0.05
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