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Note different numbers of experiments were done on each machine. Calculate an (approximate 2 decimal places) F value (F-test) for the following readings:
| Machine A | Machine B |
| 4 | 2 |
| 5 | 8 |
| 9 |
Question 4 options:
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- Note: For Exercises 13 through 62 that follow, round the answers to 3 decimal places wherever necessary. In Exercises 13 through 16, add the following signed numbers as indicated. 14. a. +12 + (-5) b. +18 + (—26) c. -20 + (+ 19) d. -23 + 17 e. -25+3A study of the relationship between age and various visual functions (such as acuity and depth perception) reported the following observations on the area of scleral lamina (mm2) from human optic nerve heads: 2.84 2.63 2.76 3.75 2.28 2.64 3.94 4.11 3.80 4.27 3.49 4.51 2.40 3.59 2.72 3.55 3.02 (a) Calculate Σxi and Σxi2. Σxi = ? mm2 Σxi2 = ? mm4 (b) Use the values calculated in part (a) to compute the sample variance s2 and then the sample standard deviation s. (Round your answers to four decimal places.) s2 = ? mm4 s = ? mm2The following data represent the muzzle velocity (in feet per second) of rounds fired from a 155-mm gun. For each round, two measurements of the velocity were recorded using two different measuring devices, resulting in the following data. Complete parts (a) through (d) below. Observation 1 2 3 4 5 6 A 790.2 793.3 791.6 793.9 794.7 793.1 B 794.8 789.0 796.2 793.5 802.9 791.3 (a) Why are these matched-pairs data? A. All the measurements came from rounds fired from the same gun. B. Two measurements (A and B) are taken on the same round. C. The measurements (A and B) are taken by the same instrument. D. The same round was fired in every trial. (b) Is there a difference in the measurement of the muzzle velocity between device A and device B at the α=0.01level of significance? Note: A normal probability plot and boxplot of the data indicate that the differences are…
- The following data represent the muzzle velocity (in feet per second) of rounds fired from a 155-mm gun. For each round, two measurements of the velocity were recorded using two different measuring devices, resulting in the following data. Complete parts (a) through (d) below. Observation 1 2 3 4 5 6 A 791.7 791.7 794.2 792.1 792.5 792.3 B 800.2 788.4 797.7 791.5 800.4 789.6 1. Why are these matched-pairs data? A.Two measurements (A and B) are taken on the same round. B.The same round was fired in every trial. C. The measurements (A and B) are taken by the same instrument. D. All the measurements came from rounds fired from the same gun. b) Is there a difference in the measurement of the muzzle velocity between device A and device B at the α=0.01 level of significance? Note: A normal probability plot and boxplot of the data indicate that the differences are approximately normally…When determining which is significant for part a -make sure to include df, p value (greater than or less than .05), and t statisticThe following data represent the muzzle velocity (in feet per second) of rounds fired from a 155-mm gun. For each round, two measurements of the velocity were recorded using two different measuring devices, resulting in the following data. Complete parts (a) through (d) below. Observation 1 2 3 4 5 6 A 790.4 790.7 790.2 792.8 794.3 792.3 B 792.9 786.3 797.9 790.7 803.6 787.5 (a) Why are these matched-pairs data? A. All the measurements came from rounds fired from the same gun. B. Two measurements (A and B) are taken on the same round. Your answer is correct. C. The same round was fired in every trial. D. The measurements (A and B) are taken by the same instrument. (b) Is there a difference in the measurement of the muzzle velocity between device A and device B at the α=0.01 level of significance? Note: A normal probability plot and boxplot of the data indicate that the…
- An observer at a busy bus stop did a 30-minute study of 3 buses. Given the following -Alight time =2 sec -Board time=3 sec -Door opening time =5 sec Determine the number of passengers alighting from the back door for the 3 busesFind the measurements of the following.The following data represent the muzzle velocity (in feet per second) of rounds fired from a 155-mm gun. For each round, two measurements of the velocity were recorded using two different measuring devices, resulting in the following data. Complete parts (a) through (d) below. Observation 1 2 3 4 5 6 A 790.2 790.2 793.3 793.3 791.6 791.6 793.9 793.9 794.7 794.7 793.1 793.1 B 794.8 794.8 789.0 789.0 796.2 796.2 793.5 793.5 802.9 802.9 791.3 791.3 (a) Why are these matched-pairs data? A. All the measurements came from rounds fired from the same gun. B. Two measurements (A and B) are taken on the same round. Your answer is correct. C. The measurements (A and B) are taken by the same instrument. D. The same round was fired in every trial. (b) Is there a difference in the measurement of the muzzle velocity between device A and device B at the alpha equals 0.01 α=0.01 level of significance? Note: A normal probability…
- According to the following table: Absolute l Frequency Rating excellent 7 good 11 regular 9 bad 8 very bad 6 The measurement level of the variable is: a. Quotient b. Interval c. Nominal d. Ordinal ¿ what is the correct ? thanks for helpFor data in the incomplete source table, what is the value of F for the first source, paint color? Source SS df MS F Paint color 4.6 3 1.533 Light condition 1.13 2 Paint x Light 2.4 6 Within 19.1 48 0.398 Total 27.4 59 a. 0.650 b. 1.633 c. 1.005 d. 3.853From the following data points (15, 24), (18, 37), (22, 25), find the Newton’s second-order divided difference. Round-off to three decimals.