Amajor newspaper is considering to launch an online edition. the newspaper plans to go ahead only if more than 25% of current readers would subscribe. the newspaper surveyed a random sample of 400 current readers, and 110 of those express interest.
a. what should the newspaper do? use appropriate test and state the assumption(s).
b. what is the p-value for the test you have conducted in part a?
Given that a major newspaper is considering to launch an online edition. The newspaper plans to go ahead only if more than 25% of current readers would subscribe
Sample size n =400
Persons who express interest = 110
Sample proportion p =
Set hypotheses as
(Right tailed test)
p difference = 0.025
STd error of p =
Test statistic =
p value = 0.4770
Since p >5% we accept null hypothesis
use substitution to solve each system of equations. y = x + 5 3x + y = 25 62/87,21 y = x + 5 3x + y = 25 substitute x + 5 for y in the second equation. substitute the solution for x into either equation to find y. the solution is (5, 10)
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answer: 1) twenty-seven times y
2) twenty-seven multiplied by y