(d) Calculate the residual corresponding to the first observation. (Round your answer to two decimal places.)Calculate the residual corresponding to the second observation. (Round your answer to two decimal places.)(e) Calculate a point estimate of o. (Round your answer to two decimal places.)Interpret the above point estimate of a.O Porosity measurements deviate from the least squares line by approximately the point estimate of sigma on average.O Porosity measurements deviate from sample mean porosity measurement by approximately the square of the point estimate of sigma on average.O The unit weights of concrete specimens deviate from the least squares line by approximately the point estimate of sigma on average.O Porosity measurements deviate from the least squares line by approximately the square of the point estimate of sigma on average.O The unit weights of concrete specimens deviate from the least squares line by approximately the square of the point estimate of sigma on average. No-fines concrete, made from a uniformly graded coarse aggregate and a cement-water paste, is beneficial in areas prone to excessive rainfall because of its excellent drainage properties. The article "Pavement Thickness Design for No-Fines Concrete Parkiremployed a least squares analysis in studying how y = porosity (%) is related to x = unit weight (pcf) in concrete specimens. Consider the following representative data.y =LUSE SALTRelevant summary quantities are Σ×, = 1640.9 ΣΥ, = 299.1, Σx2 = 180,022.35, Σxy = 32,248.04, Σy} = 6405.49.(a) Obtain the equation of the estimated regression line. (Round all numerical values to four decimal places.)Create a scatterplot of the data and graph the estimated line.120y125-115)x 99.2 101.2 102.6 103.1 105.3 107.2 108.9 110.7y 28.7 28.0 26.9 25.1 22.9 21.4 21.0 19.4x 112.0 112.6 113.5 114.0 115.0 115.5 120.1y 16.9 19.0 16.2 16.5 12.9 13.5 10.7105110-100O1015202530Xy3025201510o100 105110 115120125y3025201510100 105110 115120X125y125120115110-105100O1015202530X

Answered: (d) Calculate the residual…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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T he number of awards earned by students at one high school is recorded. Predictors of the number of awards earned include the type of program in which the student was enrolled (e.g., vocational, general or academic) and the score on their final exam in math. Below is a description of the variables and their levels of measurement Variables Student ID - NOMINAL Math Scores - RATIO Total # of awards - DISCRETE Program Type - NOMINAL (categorical with three levels: (1)general, (2)academic, (3)vocational) Total Students= 200 Total Awards = 194 Total math scores = 10529 Program Type sum = 405 Describe the modality (i.e., shape) of this distribution (please be sure to include the appropriate statistics to support your description)
7:07 PM Tue Oct 3 MY NOTES ASK YOUR TEACHER Consultant A Consultant B n₁=16 x₁ = 6.81 $₁ = 0.64 You may need to use the appropriate technology to answer this question. Periodically, customers of a financial services company are asked to evaluate the company's financial consultants and services. Higher ratings on the client satisfaction survey indicate better service, with 7 the maximum service rating. Independent samples of service ratings for two financial consultants are summarized here. Consultant A has 10 years of experience, whereas consultant B has 1 year of experience. Use a = 0.05 and test to see whether the consultant with more experience has the higher population mean service rating. О H : H1 - H2 + 0 H₂: H₁ - H₂ = 0 OHO: H₁ H₂ ≤0 H₂H₁ H₂ = 0 o Hot - thg 30 H₂H₁ H₂ ≤0 (a) State the null and alternative hypotheses. o Hot H250 Ha: H1 - H2>.0 0 Ho H1 - 2 = 0 Hỏi thì tha n₂=10 x₂ = 6.28 $₂ = 0.75 ... PRACTICE ANOTHER webassign.net (b) Compute the value of the test statistic.…
The dean of a university estimates that the mean number of classroom hours per week for full-time faculty is 11.0. As a member of the student council, you want to test this claim. A random sample of the number of classroom hours for eight full-time faculty for one week is shown in the table below. At a = 0.01, can you reject the dean's claim? Complete parts (a) through (d) below. Assume the population is normally distributed. 12.1 8.9 11.8 8.4 7.2 10.1 12.1 8.7
thill An experiment compares two different processes for producing steel plate. The measurements represent the thickness of the plate. The samples gave m = 8, X = 6.701, S1 = 0.108 n = 6, Y = 6.841, S2 = 0.155 %3D %3D Assume that the two populations are normal with equal variances, test Ho: H1 - H2 = 0 against H1 : µ1 - µ2#0 at a 0.05 significance level. 5.
Trap spacing measurements (in meters) for a sample of seven teams of red spiny lobster fisherman are reproduced in the accompanying table. Let u represent the average of the trap spacing measurements for the population of red spiny lobster fisherman. The mean and the standard deviation of the sample measurements are x = 91.4 meters and s = 12.2 meters, respectively. Suppose you want to determine if the true value of µ differs from 95 meters. Complete parts a through h below. μ 94 100 108 97 83 71 87 a. Specify the null and alternative hypotheses for this test. OA. Ho: μ = 95 Ha: μ 95 d. Find the approximate p-value of the test. OD. Ho: μ = 95 H₂:μ #95 a MacBook Pro Next
Remaining Time: 1 hour, 28 minutes, 34 seconds. Question Completion Status: 20 30 50 90 100 10 120 130 140 150 6 170 180 190 20 21 A Click Submit to complete this assessment. Question 21 Save and Submit Question 21 of 21 5 points Save Answer Provide an appropriate response. The data below are the final exam scores of 10 randomly selected chemistry students and the number of hours they slept the night before the exam. What is the best predicted value for y given x=3? Hours, x 3 Scores, y 65 5 2 8 2 4 4 5 6 3 80 60 88 66 78 85 90 90 71 O72 O 70 O 71 O 69 جا A Click Submit to complete this assessment. 61°F Sunny RYZEN AND RADEON GRAPHICS 30 ATOMY ANSWE Esc ion AN LEMB tab AK F1 F2 F3 2 # 3 W E % Q Search 8 R Y Question 21 of 21 Save and Submit G H K C Par Hel
(c) Calcculate d and sd (d) Find the standardized test statistic t.
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