document.write( "Question 259927: Hello Again,\r
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document.write( "I had already sent this question and got part of the answer but I had forgot to send the second part, and I think that I figured out the second part but not for sure I may be wrong.\r
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document.write( "Question:\r
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document.write( "2.Use the method specified to perform the hypothesis test for the population
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document.write( "mean . A local brewery distributes beer in bottles labeled 32 ounces. A government agency thinks that the brewery is cheating its customers. The agency select 50 of these bottles, measures their contents, and obtains a sample mean of 31.6 ounces with a population standard deviation of 0.70 ounce. At - this symbol means the level of significance alpha = 0.01, test the agency’s claim that the brewery is cheating its customers\r
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document.write( "b. Use the P-value method. \r
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document.write( "1. H0 : u=32
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document.write( "Ha :
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document.write( "2. = u is greater than 32
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document.write( "3. Test statistics: 31.6-32/0.7/square root 50=4.0406
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document.write( "4. P-value or critical z0 or t0. df (-100 -4.0406.49) =0.0009379
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document.write( "5. Rejection Region:
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document.write( "6. Decision:
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document.write( "7. Interpretation: \r
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document.write( "I am going based on from what I had gotten help on the first part of the question, and also I based it on the formula used in the book.
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Algebra.Com's Answer #191424 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 2.Use the method specified to perform the hypothesis test for the population \n" ); document.write( "mean . A local brewery distributes beer in bottles labeled 32 ounces. A government agency thinks that the brewery is cheating its customers. The agency select 50 of these bottles, measures their contents, and obtains a sample mean of 31.6 ounces with a population standard deviation of 0.70 ounce. At - this symbol means the level of significance alpha = 0.01, test the agency’s claim that the brewery is cheating its customers \n" ); document.write( "b. Use the P-value method. \n" ); document.write( "1. \n" ); document.write( "Ho : u=32 \n" ); document.write( "Ha : u < 32 (because the problem claims there is cheating which is less than 32) \n" ); document.write( "---------------------- \n" ); document.write( "2. = 1% \n" ); document.write( "3. Test statistics: \n" ); document.write( "t(31.6) = (31.6-32)/[0.7/square root(50) = -4.0406 \n" ); document.write( "4. P-value or critical z0 or t0. df (-100 -4.0406.49) = 0.00009379 \n" ); document.write( "Note: I changed your p-value: It should be 9.378x10^-5 = 0.00009379 \n" ); document.write( "5. Rejection Region: \n" ); document.write( "For a left tail test with alpha = 1% and df=49 the \n" ); document.write( "rejection Region is t< invT(0.01,49) = -2.4049 \n" ); document.write( "------------------ \n" ); document.write( "6. Decision: Since p < 1%, reject Ho. \n" ); document.write( "7. Interpretation: \n" ); document.write( "The test results support rejecting the manufacturer's claim \n" ); document.write( "and provides strong evidence that the brewery is cheating. \n" ); document.write( "====================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |