ofCertainthe timetheflight arrives on time 86 percentselected. Use ppose 183 Flights are randomlybinomial to approximate peroximation to theexactly 155 flights are on ot, mbility that()(b) at least 155 flights are on time(C) fewer than iss plights areplights are on timebetween 155 and 163, inclusive are on time(d) between**(9) P (155) =rand to four decimal places as needed.

Answered: A Certain flight arrives on time 86…

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.6: Counting Principles

Problem 74E: Lottery Powerball is a lottery game that is operated by the Multi-State Lottery Association and is...

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Lottery Powerball is a lottery game that is operated by the Multi-State Lottery Association and is played in 44 states, Washington D.C., Puerto Rico, and the U.S. Virgin Islands. The game is played by drawing five white balls out of a drum of 69 white balls (numbered 1-69) and one red powerball out of a drum of 26 red balls (numbered 1-26). The jackpot is won by matching all five white balls in any order and the red powerball. (a) Find the possible number of winning Powerball numbers. (b) Find the possible number of winning Powerball numbers when you win the jackpot by matching all five white balls in order and the red powerball.
4. A city official claims that the proportion of all commuters who are in favor of an expandedpublic transportation system is 50%. A newspaper conducts a survey to determine whetherthis proportion is different from 50%. Out of 225 randomly chosen commuters, the surveyfinds that 90 of them reply yes when asked if they support an expanded public transportationsystem. Test the official’s claim at α = 0.05.
Engineering company has a task of checking compressive strength for 100 concrete cubes. The results revealed that 85 cubes passed the compressive strength test successfully and 15 cubes failed in the test. If 10 cubes are selected at random to be inspected by the company, determine the probability that the 8 cubes will pass the test and 2 cubes will fail in the test by using the Combinatorial Analysis. *
A random group of used books was selected from book warehouse to analyze their condition. The book store believes that 22% of the books are in excellent condition, 32% are in very good condition, 17% are in fair condition , and % are poor condition. Is there evidence to reject this hypothesis at a = 0.05
An auditor randomly chooses 5 tax returns from a list that consists of 15 tax returns. In the list, are 9 illegal deductions and 6 have no illegal deductions. i. Find the pmf for X (the # of returns that have llegal deductions) ii. Find CDF of X. iii. Use pmf and CDF to find P (2 ≤ x ≤ 4). Show work.
Women executives A company is criticized because only13 of 43 people in executive-level positions are women.The company explains that although this proportion islower than it might wish, it’s not surprising given thatonly 40% of all its employees are women. What do you think? Test an appropriate hypothesis and state your con-clusion. Be sure the appropriate assumptions and condi-tions are satisfied before you proceed.

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