Unformatted text preview: x ) ( y – y ) = Σ ( x – x ) y = 252. a) Test H : ρ = 0 vs. H a : > 0 at the α = 0.01 level of significance. What can you say about the pvalue of this test? b) Does it follow from part (a) that storks do bring babies? Explain . c) Test H : = 0.50 vs. H a : > 0.50 at the α = 0.05 level of significance. What can you say about the pvalue of this test? d) Construct a 95% confidence interval for . 100 ( 1 – α ) % confidence interval for : & & ± ² ³ ³ ´ µ ++1 1 , 1 1 b b a a e e e e , where 3 2 1 1 2 ln+ = n r r a z α , 3 2 1 1 2 ln++ = n r r b z ....
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This note was uploaded on 05/09/2010 for the course MATH 420 taught by Professor Stepanov during the Spring '10 term at University of Illinois, Urbana Champaign.
 Spring '10
 Stepanov

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