document.write( "Question 1159277: Test the claim that the mean GPA of Orange Coast students is smaller than the mean GPA of Coastline students at the 0.025 significance level.
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document.write( "The null and alternative hypothesis would be:
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document.write( "a)H0:μO≤μC
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document.write( "H1:μO>μC
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document.write( "b)H0:μO=μC
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document.write( "H1:μO≠μC \r
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document.write( "c)H0:μO≥μC
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document.write( "H1:μO<μC \r
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document.write( "d)H0:pO≤pC
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document.write( "H1:pO>pC \r
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document.write( "e)H0:pO≥pC
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document.write( "H1:pO
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document.write( "f)H0:pO=pC
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document.write( "H1:pO≠pC \r
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document.write( "The test is:
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document.write( "A)right-tailed
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document.write( "B)two-tailed
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document.write( "C)left-tailed \r
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document.write( "The sample consisted of 55 Orange Coast students, with a sample mean GPA of 2.75 and a standard deviation of 0.02, and 55 Coastline students, with a sample mean GPA of 2.76 and a standard deviation of 0.06.
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document.write( "The test statistic is: ________________(to 2 decimals)
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document.write( "The p-value is:__________________(to 2 decimals)
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document.write( "Based on this we:
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document.write( "A)Reject the null hypothesis \n" );
document.write( "
Algebra.Com's Answer #782522 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! because expect O to be < C, make Ho: O is >= C and Ha: O is less than C which is C for the letter choice \n" ); document.write( "it is a left-tail test, because we expect the change to be on the left or negative side. \n" ); document.write( "the test statistic is t=-1.17, p-value is 0.12\r \n" ); document.write( "\n" ); document.write( "Fail to reject Ho: insufficient evidence to conclude that mu O is less than mu C.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |