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5.An administrator in a college claims that more than 70% of students buy textbooks online. A survey of 420 college students showed that 290 of

5.An administrator in a college claims that more than 70% of students buy textbooks online. A survey of 420 college students showed that 290 of them purchase textbooks online. Test using the levelof significance =0.01 whether the population proportion of all college students who purchased textbooks online is more than 70%.

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