Chapter 1.3, Problem 2QR

e7.5 please explain

4. Explain how to use the formula P(A or B) = P(A) + P(B) – P(A and B). Be specific. B U Font Family - AA A O E-E E HO1080 acer esc -> Ce C@ #3 $4 & tab e

Central Airlines claims that the median price of a round-trip ticket from Chicago, Illinois, to Jackson Hole, Wyoming, is $603. This claim is being challenged by the Association of Travel Agents, who believe the median price is less than $603. A random sample of 25 round-trip tickets from Chicago to Jackson Hole revealed 11 tickets were below $603. None of the tickets was exactly $603 a. State the null hypothesis and alternate hypothesis Answer is complete and correct. Ho median 2 H, median < Reject s $ 003 603 b-1. State the decision rule. Use the 0.5 significance level Answer is complete and correct. Het 7 or less tickets were less man 603

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Perform the indicated calculation. 6P3 11P4 6P3 (Round to four decimal places as needed.) 11P4

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i-9 what does the =?

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What are the values of u and o ? (Use 3 decimal places.) eed Help?