Absorption of Moisture in Concrete AggregatesAggregate:12345551595639417563457580615449631450508511517522731583573438613499633648415656632517677555679Test the hypothesis at 0.05 level of significance that the average absorption of moisture in concreteaggregates are the same for the five groups.What is the sum of squares within?Round-off answer to 2 decimal places

We need to test, the null and alternative hypotheses: Ho : the average absorption of moisture in…

Answered: Absorption of Moisture in Concrete…

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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Samples of plastic product were selected from a batch of material, and the tensile strength in kg was measured for three different time durations, with the following results. UTM UTM i. Time durations 11-12 pm 12-1 pm 1-2 pm OUTMO ii. OUTH Tensile strength 605 602 375 704 465 287 680 601 602 478 438 370 512 535 590 501 394 473 6 UTM Estimate the variability due to time durations of tensile strength and the overall variability of the observations. OUTMtion Is there a significance difference in the tensile strength due to different time durations? Use 1% significance level. UTM
av Question 33- of 40 Step 1 of 1 You are given the following set of observations for the predictor variablex and the response variable y, as shown in the image. The computed coefficient of determination will be X Y -3 7 -1 4 1 5 2 -1 -1.2373 0.6498 34407 -0.8061 02:29:12 Tables Keypad Keyboard Shortcuts > Next
Chest Deceleration Measurements (g) from a Standard Crash Test Small 44 39 37 54 39 44 42 Midsize 36 53 43 42 52 49 41 Large 32 45 41 38 37 38 33 SPSS Results Sum of Squares df Mean Square F Sig. Between Groups 200.857 2 100.429 3.288 0.061 Within Groups 549.714 18 30.540 Total 750.571 20
Estimate sensitivity, specificity, positive predictive value, negative predictive value and prevalence from data in the 2 x 2 table for an infectious disease and its diagnostic test.
Breast feeding sometimes results in a temporary loss of bone mass as calcium is depleted in the mother's body to provide for milk production. An investigation gave the following data on total body bone mineral content (g) for a sample of mothers both during breast feeding (B) and in the postweaning period (P). B 2 3 4 5 6 7 8 9 10 2368 2181 2007 2362 2684 2671 2142 2774 2097 2540 2447 2354 2195 2500 2745 2858 2243 2824 2297 2668 P Do the data suggest that true average total body bone mineral content during postweaning exceeds that during breast feeding by more than 25 g? State and test the appropriate hypotheses using a significance level of 0.05. (Use a statistical computer package to calculate the P-value. Use μp - μg. Round your test statistic to two decimal places and your p-value to three decimal places.) 5.70 df = 9 P-value = 0.000 Subject 1 Conclusion O Fail to reject Ho. Reject Ho
Q.1 Q.1 Two samples A and B were taken from a large concrete mix and tested for the compressive strength of concrete (in MPa), find the mean, median and mode of cach of the two samples. The results of tested specimens from each sample were as follows: 国 Compressive Strength 15 18 21 24 27 30 (MPa) Sample A Frequency 2 2 4 1 Sample B Frequency 3 2 2 1 Option 1 13
Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages (xx) Cost(yy) 726 35.3 737 45.85 355 24.75 255 14.75 754 34.7 797 49.85 898 59.9 424 18.2 391 31.55 A student calculates a linear modelyy = Incorrect xx + . (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 777.Cost = $ (Please show your answer to 2 decimal places.)
Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The bivariate data are shown below: Number of Pages (xx) Cost(yy) 605 43.35 844 70.08 525 47.75 303 24.21 341 36.87 734 56.38 928 65.96 939 81.73 831 76.17 A student calculates a linear modelyy = xx + . (Please show your answers to two decimal places)Use the model to estimate the cost when number of pages is 223.Cost = $ (Please show your answer to 2 decimal places.)
1-What these statistics tell you about the kurtosis of the variables:
2.2 (31) Virulence and pathogen transmission The number of new infections produced by an individual infected with a pathogen such as influenza depends on the mortality rate that the pathogen causes. This pathogen-induced mortality rate is referred to as the pathogen's virulence. (The photo shows victims at Camp Funston of the influenza epidemic of 1918.] Extremely high levels of virulence result in very little transmission because the infected individual dies before infecting other individuals. Under certain assumptions, the number of new infections N is related to virulence v by the function
Vital statics
Exercise 13-51 (Static) (LO13-6) Bardi Trucking Co., located in Cleveland, Ohio, makes deliveries in the Great Lakes region, the Southeast, and the Northeast. Jim Bardi, the president, is studying the relationship between the distance a shipment must travel and the length of time, in days, it takes the shipment to arrive at its destination. To investigate, Mr. Bardi selected a random sample of 20 shipments made last month. Shipping distance is the independent variable and shipping time is the dependent variable. The results are as follows: Shipment Distance(miles) Shipping Time (days) Shipment Distance(miles) Shipping Time (days) 1 656 5 11 862 7 2 853 14 12 679 5 3 646 6 13 835 13 4 783 11 14 607 3 5 610 8 15 665 8 6 841 10 16 647 7 7 785 9 17 685 10 8 639 9 18 720 8 9 762 10 19 652 6 10 762 9 20 828 10 Click here for the Excel Data File a. Draw a scatter diagram. Based on these data,…

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