Mathematics, 12.03.2021 14:00 Niktorres560Luckynik
Costly Texts. The UCSD bookstore claims that only 10% of the textbooks they carry are over $100. After
spending too much money on books, Angelo does not believe their claim. He takes a simple random sample
of 100 textbooks and finds that 15% of them are cost over $100. Does he have statistically significant
evidence that the book store's claim is incorrect? Test at 5% level of significance.
ASSUME all conditions have been met.
Answers: 3
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Costly Texts. The UCSD bookstore claims that only 10% of the textbooks they carry are over $100. Aft...
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