In a sample of 300 steel rods, the correlation coefficient between diameter and length was r =
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In a sample of 300 steel rods, the correlation coefficient between diameter and length was r = 0.15.
a. Find the P-value for testing H0 : ρ ≤ 0 vs. H1 :ρ > 0. Can you conclude that ρ > 0?
b. Does the result in part (a) allow you to conclude that there is a strong correlation between eccentricity and smoothness? Explain.
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a r 015 n 300 U rn 21 r 2 261903 Under H 0 Uhas a Students tdistribution with 300...View the full answer
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