H 123| 456 78 9G 12 3 4 5F 123456 7896 78 9E 123| 456789 10 11D 12 3456 789 10 11C 123 456 789 10 11B 12345678 9 10 11A 123 456 78 9 10SCREEN: double seat|: optional wheelchair spaceCORRIDORCORRIDOR 2.2.1 Eckhard is in seat D7. His parents sit 3 rows behind him on his left. He believesthat his parents sit in seats G4 and 5.Is he correct? Motivate your answer.2.2.2 Determine the number of double seats as a percentage of the total number ofseats in the theatre. There are seats in the “optional wheelchair space" which canbe removed for wheelchairs if needed.

We have to solve given Questions.

Answered: .1 Eckhard is in seat D7. His parents…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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A retailer wants to see if a red "Sale" sign brings in more revenue than the same "Sale" sign in blue. The data below shows the revenue in thousands of dollars that was achieved for various days when the retailer decided to put the red "Sale" sign up and days when the retailer decided to put the blue "Sale" sign up. Red: 2.7, 2.6, 1.1, 4.2, 2.6, 3.4, 2.3, 2.9, 4, 2.6 Blue: 2.2, 1, 2.8, 1.6, 0.6, 0.9, 1, 1.7, 3.4 Assume that both populations follow a normal distribution. What can be concluded at the a = 0.01 level of significance level of significance? b. The test statistic t î = (please show your answer to 3 decimal places.) c. The p-value = (Please show your answer to 4 decimal places.)
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Carl Catcher has a batting average of .370, meaning that he makes a hit 37% of the times he is up at bat. Pete Pitcher has a batting averager of only .110. Let x be the number of times Carol comes up to bat and let y be the number of times Pete comes to bat. a. If Carl bats 7 times and Pete bats 3 times, what should ther overall batting average be? b. If a total of 50 times at bat, how many times may Pete bat in order for their combined average to be as close as possible to .300? (define 3 variables, write system and solve)
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PLEASE HELP SOLVE THE PROBLEM BELOW A candy manufacturer selects mints at random from the production line and weighs them. For one week, the day shift weighed n1 = 194 mints and the night shift weighed n2 = 162 mints. The numbers of these mints that weighed at most 21 grams was y1 = 28 for the day shift and y2 = 11 for the night shift. Let p1 and p2 denote the proportions of mints that weigh at most 21 grams for the day and night shifts, respectively. Give a point estimate of p1 Give the 95% confidence interval for p1 Give a point estimate of p1 − p2 Find the 95% confidence interval for p1 − p2
The U.S. Open Golf Tournament was played at Congressional Country Club, Bethesda, Maryland, with prizes ranging from $465,000 for first place to $5000. Par for the course is 70. The tournament consists of four rounds played on different days. The scores for each round of the 32 players who placed in the money (more than $17,000) are given. The scores for the first round were as follows. 71 65 67 73 74 73 70 75 71 72 71 75 75 71 71 72 72 73 71 67 66 75 75 75 71 The scores for the fourth round for these players were as follows. 69 69 73 73 73 74 72 72 70 71 71 72 71 71 71 71 69 70 72 74 72 71 68 69 70 69 71 73 74 1 2 3 4 (a) Make a stem-and-leaf display for the first-round scores. Use two lines per stem. (Enter your answers from smallest to largest separated by spaces. Enter NONE for stems with no leaves.) First-Round Scores X X X X 5 6 7 8 71 71 74 73 71 74 75 NONE NONE NONE NONE 70 NONE 72 73 (b) Make a stem-and-leaf display for the fourth-round scores. Use two lines per stem. (Enter…

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