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.

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/wzUiVyK

25 questions , because they start with 100.  

350-100=250 .  

. 250/10=25

step-by-step explanation:

first take off 100, then what x 10 = 250? that is your answer. (25)

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.