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.

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there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation:

answer is  

a.

p = 78

step-by-step explanation: