ummm I need help :( S Savvas Realizem/community/classes/180aa2699ede435ab62dfScd5b48f19a/assignments/dc3ac7d24c934b76a3955c40294e062f/content/6dff85b3-2f69-3f19-8283-8d2ff6acdfae/27/assignA Mapsractice & Problem SolvingQuestion Help2.8.PS-6Find the rate of change and initial value for thelinear function.Ay10-The rate of change is.(Simplify your answer.)8-6-4-2-->10-4-24.6.8.-2--4-Enter your answer in the answer box and then click Check Answer.1 partremainingClear AllCheck AnswerReview progressQuestion 1of 6+ BackNext ->earch

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Find the rate of change and initial value for the linear function. 10- The rate of change is 8- (Simplify your answer.) 6- 4- 2- 2. -2 -2- 4. 10 Enter your answer in the answer box and then click Check Answer. 1 part remaining Clear All Check Answer Review progress Question 1 of 6 + Back Next -> rch EPIC

Find the rate of change and initial value for the linear function. 10- The rate of change is 8- (Simplify your answer.) 6- 4- 2- 2. -2 -2- 4. 10 Enter your answer in the answer box and then click Check Answer. 1 part remaining Clear All Check Answer Review progress Question 1 of 6 + Back Next -> rch EPIC

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 31E

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A box has 3white(W) balls,2 black (B) balls and 4 red(R) balls. Two balls were drawn successively from this box (i) with replacement/ (ii) without replacement. Let X=the number of white balls drawn and let Y=the number of black balls drawn.
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In an experiment to investigate a medication’s effect,researchers randomly assign 60 volunteers to receive10 mg, 20 mg, or 30 mg of the medication. What is oneof the limitations of this experiment?A) The conclusions will be questionable because thedesign has no blocking.B) The conclusions will be questionable because nogroup gets a placebo. C) The conclusions cannot be generalized to a popula-tion because the subjects are volunteers. D) The conclusions will be questionable because thereare only 20 subjects in each group.E) The conclusions will be questionable because eachsubject is not given all of the doses.
3.) An advertising agency wants to know whether the no of column inches of classified ad carried by 2 competing newspapers is equal. The no of column inches appearing in both newspapers, respectively, on 20 randomly selected days follows: 663 & 725, 713 & 806, 626 & 620, 682 & 626, 639 & 595, 651 & 614, 769 & 744, 701 & 719, 723 & 680, 670 & 639, 665 & 602, 639 & 657, 694 & 624, 614 & 614, 651 & 583, 632 & 682, 739 & 657, 657 & 639 & 775 & 745. a.) Use signed-rank test at 0.01 level of sig to test to test whether or not newspaper 1 & 2 carry equal amount of classified ad. b.) A random sample of orders at an auto supply warehouse took 27, 41, 33, 44, 34, 22, 38, 23, 30, 37 & 32 minutes to assemble for shipment. Use the signed rank test at 0.05 level of sig to test whether or not it takes, on the average, 29 minutes to assemble an order for shipment.
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.
Consider a screening system that analyzes the luggage that is being loadedto a plane. Each package first goes through a screening device. If it passes the test there, then it is loaded to the plane. If it does not, the package goes to a second screening device. The procedure is similar for the second device: if the luggage passes the test, it is loaded to the plane, if it fails, it issent to a third device. Packages that passes the test at third device are loladed to the plane, the ones that fail are taken paprt and not loaded to the plane.The screening devices i = 1; 2; 3 are not perfect. For each device, there are two risks:– With probability pi, each device erroneously passes a bag that is dangerous, given that previous devices have correctly rejected the bag.– With probability qi, each device erroneously fails a harmless bag that previous devices have also erroneously failed.Assume that pi; qi > 0 What is the probability that a dangerous package will be loaded to the aircraft?…
Queen Mutuashi, a medical researcher at a famous hospital in Mombasa is interested infinding the causes of lung cancer in Kenya. In an attempt to achieve her objective, shesurveyed 450 lung cancer patients in the hospital and found out that 140 were cigarettesmokers, 164 lived in urban areas, and 200 had hazardous occupations. 80 of the smokerslived in urban areas, 56 had hazardous occupations, and 33 were in both categories. 60 ofthe patients with hazardous occupations neither lived in an urban area nor smoked.Required(i) Represent the information on a Venn diagram(ii) Determine the number of patients living in urban areas who had hazardousoccupations.(iii) How many of the patients living in the urban areas neither smoked nor had hazardousoccupations?(iv) Determine the number of patients who smoke if and only if they lived in urban areas.(v) Queen Mutuashi would infer that these are the three common causes of lung cancer if70% of the individuals suffering from the disease have at…
Assume that a tennis coach from Texas wants to develop a rally test that can classify players’ performance level accurately. The coach randomly selected 20 tennis players, 10 players are Super Champs (high level), another 10 are Challengers (low level). The coach feeds 10 balls to each of players and sets up the cutoff score of 8. Namely, if a player who can return 8 out of 10 balls to a specific area, is considered a high level. Otherwise, they are considered as low level performance. The table below showed the numbers that players can return balls to the specific area. What is the contingence coefficient? SuperChamps Challegers 10 8 10 8 10 7 9 7 9 6 8 5 8 6 8 3 7 4 7 5 a. .70 b. .75 c. .80 d. .85
An Army Commanding Officer has a patrol duty roster for 2 combat team and flip a coin for any combat team that to go patrol duty, this coin may or may not be fair. The results of 30 patrol duty of the 2 combat team Blue (B) and Red (R) accrording to those coin are B B R B R B B R B B R B B R B R B B B R R R R R B B B B B R. Using the critical value approach, appropriate conclusion is ________. A) do not reject the null hypothesis; we cannot conclude the coin is not fair B) reject the null hypothesis; we can conclude the coin is not fair C) reject the null hypothesis; we cannot conclude the coin is not fair D) do not reject the null hypothesis; we can conclude the coin is not fair Explaine your answer
The Department of Mathematics of a certain university in a recent survey was found to consist of 80 faculty members. The survey also revealed the information that among them, there are: 40 male professors; 38 married professors; 26 professors with more than 10 years of service; 15 married male professors; 14 married professors with more than 10 years of service; 13 male professors with more than 10 years of service; and 6 married male professors with more than 10 years of service. How many unmarried female professors have less than or equal to 10 years of service?
5. To compare the gas mileage of 2 cars, you conduct 50 mileage tests on each of the 2 different cars. At α = 0.10, can you support the claim that car 1 gets better gas mileage than car 2. Data Car 1: µ = 28.3, s1 = 3.2 Car 2: µ = 28.7, s1 = 2.6 State the Ho, Ha, and the claim Group of answer choices Ho: m1 ≤ m2, Ha: m1 > m2 (claim) Ho: m1 ≥ m2 (claim), Ha: m1 < m2 Ho: m1 ≥ m2 , Ha: m1 < m2 (claim) Ho: m1 ≤ m2 (claim), Ha: m1 > m2
A school psychologist wants to test the effectiveness of a new method for teaching reading. She takes 500 first grade students from District 12 (all with the same teacher), and randomly assigns half of them to the traditional method and half of them to the new method for teaching reading. The students are not told which teaching method they are being taught with. At the end of the year, she obtains all scores on a reading achievement test, and looks for any differences between the two groups. f. Is double-blinding possible in this experiment? Why or why notg. g. If the school psychologist wanted to allow more districts to participate in the study, how could the study be redesigned? Draw a diagram representing the design, and include four districts in your design. h. If the school psychologist wanted to examine whether the new teaching method improved reading scores, how could the study be redesigned? Explain.