2. A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 75%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 240 high school seniors in his random sample, 165 believe that "getting rich" is an important goal. Can he conclude, at the 0.1 level of significance, that the proportion is different from the previous study? Carry your intermediate computations and your final answers as specified in the questions.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Use Both the Traditional Method and the p-value Method
2. A decade-old study found that the proportion, p, of high school seniors who believed that
"getting rich" was an important personal goal was 75%. A researcher decides to test whether
or not that percentage still stands. He finds that, among the 240 high school seniors in his
random sample, 165 believe that "getting rich" is an important goal. Can he conclude, at
the 0.1 level of significance, that the proportion is different from the previous study? Carry
your intermediate computations and your final answers as specified in the questions.
Transcribed Image Text:Use Both the Traditional Method and the p-value Method 2. A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an important personal goal was 75%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 240 high school seniors in his random sample, 165 believe that "getting rich" is an important goal. Can he conclude, at the 0.1 level of significance, that the proportion is different from the previous study? Carry your intermediate computations and your final answers as specified in the questions.
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