A decade-old study found that the proportion, p, of high school seniors who believed that getting...
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A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 80%. A researche decides to test whether or not that percentage still stands. He finds that, among the 205 high school seniors in his random sample, 177 believe that "getting rich" is an important goal. Can he conclude, at the 0.05 level of significance, that the proportion has indeed changed? Perform a two-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas The null hypothesis: H, :0 S. The alternative hypothesis: H :0 O=D The type of test statistic: (Choose one) The value of the test statistic: (Round to at least three decimal places.) The two critical values at the 0.05 level of significance: |and | (Round to at least three decimal places.) Can we conclude that the proportion of high school seniors who believe that "getting rich" is an important goal has changed? Yes O No Activ P. A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 80%. A researche decides to test whether or not that percentage still stands. He finds that, among the 205 high school seniors in his random sample, 177 believe that "getting rich" is an important goal. Can he conclude, at the 0.05 level of significance, that the proportion has indeed changed? Perform a two-tailed test. Then fill in the table below. Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. (If necessary, consult a list of formulas The null hypothesis: H, :0 S. The alternative hypothesis: H :0 O=D The type of test statistic: (Choose one) The value of the test statistic: (Round to at least three decimal places.) The two critical values at the 0.05 level of significance: |and | (Round to at least three decimal places.) Can we conclude that the proportion of high school seniors who believe that "getting rich" is an important goal has changed? Yes O No Activ P.
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Related Book For
Business Statistics a decision making approach
ISBN: 978-0133021844
9th edition
Authors: David F. Groebner, Patrick W. Shannon, Phillip C. Fry
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