Question Solved1 Answer 10+ You are working in a car manufacturing company. You are given the mileage readings of a 100 test runs of the latest car model. You have to identify if the mean car mileage for 100 test runs is significantly greater than 15 kilometer per hour (kmph). You decide to use a 1 -Sample t test. The alternative hypothesis is the Mean Mileage for 100 test runs > 15 kmph. Based on the diagram, identify the correct outcome. One-Sample T: Car Mileage Test of mu = 15 vs > 15 Variable N Mean StDev SE Mean Car Mileage 100 10.802 1.924 0.192 95% Lower Bound 10.483 -21.82 1.000 A Since p-value is > 0.05, it is concluded with a confidence level of 95%, that the mean car mileage is NOT significantly lesser than 15 kmph B Since p-value is < 0.05, it is concluded with a confidence level of 95%, that the mean car mileage is significantly greater than 15 kmph Since p-value is < 0.05, it is concluded with a confidence level of 95%, that the mean car mileage is significantly lesser than 15 kmph D Since p-value is > 0.05, it is concluded with a confidence level of 95%, that the mean car mileage is NOT significantly greater than 15 kmph

(b) Consider an experiment of two rolls of a balanced die. If X is the number of 2's and Y is the number of 3's obtained in the two rolls of the die, find thej.p.d.f of X and Y (ii) P(2X+y<3)

help asap Check my war Two wooden members are joined by plywood splice plates that are fully glued on the contact surfaces Knowing that the clearance between the ends of the members is 6 mm and that the ultimate shearing stress in the glued joint is 2.5 MPa, determine the length L for which the factor of safety is 2.75 for the loading shown. Take P=15 kN. P The length mm

Sex Race Age 2 2 1 NNN 25 78 70 33 60 78 72 Region Ancestors astrosci educ 2 3 1 1 1 1 1 1 2 3 4 1 3 3 1 2 1 2 2 2 1 3 4 2 3 1 4 2 1 2 1 2 2 3 1 3 2 2 2 3 3 3 1 3 1 3 3 2 2 3 3 1 4 3 Income 16 34.57 15 78.65 17 56.73 18 23.46 13 54.53 13 44.23 16 66.54 16 67.85 25.67 27.87 17 55.61 16 26.54 18 76.54 16 33.46 16 23.47 NN 2 3 2 1 2 1 1 1 1 2 37 44 50 Sex= Sex of the Respondent 1=Male 2=Femal Age Age of the Respondent Race=Race of the Respondent 1= White 2=Black 3-Other Region= Region of Respondent 1= Mid West 2=Mid Atlantic 3= New England Ancestor=Do you believe that your deceased ancestors have supernatural powers? 1= Yes, Definiity; 2= Yes, Probably 3=No, Probably not; 4=no definitely not Astrosci= Is Astrology Scientific; 1=Very Scientific 2=Sort of Scientific 3= Not Scientific at all Educ=Highest Year of School completed Income=Income in 1000s of Dollars For the nominal variables race and region provide the mode and index of qualitative variation (IQV). Which variable has more variation? 2. For ordinal variables ancestor and astrosci provide the mode and median. Describe what each statistic tells you about the data. 3. For interval level variables age, education and income, provide the range, inter-quartile range, mean, median, variance, and standard deviation. Interpret each statistic. Answer the following questions: 4. Briefly explain the difference between measures of central tendency and measures of variability. Why do we need both? Can you think of a situation where central tendency might be misleading if you did not know the variability? 5. Why don't we use means for nominal level variables?

1) a) i) Define what is a vector space. ii) The 2-D Laplace equation: av av + - 0 ax? Əy? ay with appropriate boundary conditions, has a general solution of the type v(x, t) = G(x + iy) + H(x – iy) iii) Let F be a real field. Show that the general solution in part 1) a) ii) forms a vector space over F. (8 + 4 + 4 marks) = ii) The 2-D Laplace equation: a2v av + = 0 Əx2y2 with appropriate boundary conditions, has a general solution of the type v(x, t)=G(x + iy) + H(x – iy) iii) Let F be a real field. Show that the general solution in part 1) a) а ii) forms a vector space over F.

Fať 7 -6+ 62 – 4ac x = xo + vot+ v = vo + at , v2 = võ + 2aAx ,t= 2a Problem 1: A ball is thrown straight up from the ground. The ball reaches a maximum height of 5 m. For simplicity, for this problem, use g 10 m/sec. (a) Calculate the initial speed of the ball. Answer: 10 m/sec. (b) Calculate the time it takes the ball to reach the maximum height of 5 m. Answer: 1 sec. (c) Calculate the time it takes the ball to hit the ground. Answer: 2 sec. (d) Make a sketch of the position vs. time graph for this problem, y(t) vs. t. (e) Calculate the time(s) when the ball is at a height of 3 m above the ground. Answer: t = 0.37 sec and t = 1.63 sec. (f) Calculate the velocity of the ball when the ball is at a height of 3 m above the ground. Answer: v= : +6.3 m/sec for t = 0.37 sec and v -6.3 m/sec for t = 1.63 sec. =

Write a C program to recognize strings under 'a', 'a*b+', 'abb’ (without using switch)Thanks in advance:)