A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an 75%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 215 random sample, 173 believe that "getting rich" is an important goal. Can he conclude, at the 0.01 level of sign indeed changed? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.
A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an 75%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 215 random sample, 173 believe that "getting rich" is an important goal. Can he conclude, at the 0.01 level of sign indeed changed? Perform a two-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:A decade-old study found that the proportion, p, of high school seniors who believed that "getting rich" was an
75%. A researcher decides to test whether or not that percentage still stands. He finds that, among the 215
random sample, 173 believe that "getting rich" is an important goal. Can he conclude, at the 0.01 level of sign
indeed changed?
Perform a two-tailed test. Then complete the parts below.
Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.
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