Using R language An experiment was performed to determine whether the annealing temperature of ductile iron affects itstensile strength. Five specimens were annealed at each of four temperatures. The tensile strength (in ksi)was measured for each. The results are presented in the following table.Temperature (°C) Sample Values75080019.7216.0120.88 19.63 18.68 17.8985090016.6616.9320.0417.38 14.49 18.21 15.5814.49 16.15 15.53 13.2518.10 20.28 20.53(i) What is the sample mean of tensile strength when annealing temperature is 750 or 850.(ii) Construct a 95% confidence interval for the treatment mean when annealing temperature is 800.(iii) Under the normal assumptions, can you conclude that there are differences among the mean tessilestrengths? What is the p-value for this test?(iv) Using Kruskal-Wallis test, can you conclude that there are differences among the mean tessilestrengths?

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Answered: An experiment was performed to…

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter4: Control Structures I (selection)

Section: Chapter Questions

Problem 18PE: One way to determine how healthy a person is by measuring the body fat of the person. The formulas...

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(Heat transfer) The formula developed in Exercise 5 can be used to determine the cooling time, t, caused only by radiation, of each planet in the solar system. For convenience, this formula is repeated here (see Exercise 5 for a definition of each symbol): t=Nk2eAT3fin A=surfaceareaofasphere=4r2 N=numberofatoms=volumeofthespherevolumeofanatom Volume of a sphere sphere=43radius3 The volume of a single atom is approximately 11029m3 . Using this information and the current temperatures and radii listed in the following chart, determine the time it took each planet to cool to its current temperature, caused only by radiation.
(Mechanics) The deflection at any point along the centerline of a cantilevered beam, such as the one used for a balcony (see Figure 5.15), when a load is distributed evenly along the beam is given by this formula: d=wx224EI(x2+6l24lx) d is the deflection at location x (ft). xisthedistancefromthesecuredend( ft).wistheweightplacedattheendofthebeam( lbs/ft).listhebeamlength( ft). Eisthemodulesofelasticity( lbs/f t 2 ).Iisthesecondmomentofinertia( f t 4 ). For the beam shown in Figure 5.15, the second moment of inertia is determined as follows: l=bh312 b is the beam’s base. h is the beam’s height. Using these formulas, write, compile, and run a C++ program that determines and displays a table of the deflection for a cantilevered pine beam at half-foot increments along its length, using the following data: w=200lbs/ftl=3ftE=187.2106lb/ft2b=.2fth=.3ft
(Thermodynamics) The work, W, performed by a single piston in an engine can be determined by this formula: W=Fd F is the force provided by the piston in Newtons. d is the distance the piston moves in meters. a. Determine the units of W by calculating the units resulting from the right side of the formula. Check that your answer corresponds to the units for work listed in Table 1.1. b. Determine the work performed by a piston that provides a force of 1000 N over a distance of 15 centimeters.
Determine the value of each of the following expressions. (For decimal numbers, round your answer to two decimal places.) (1) abs(-18) fabs(20.5) fabs(-87.2) pow(4, 2.0) pow(8.4, 3.5) sqrt(7.84) sqrt (196.0) sqrt (38.44)* pow(2.4, 2) / fabs(-3.2) floor(27.37) ceil(19.2) floor(12.45) + ceil(6.7) floor (-8.9) + ceil (3.45) floor(9.6) / ceil(3.7) pow(-4.0, 6.0) pow(10, -2.0) pow(9.2, 1.0 / 2)
(Numerical) Determine and write an algorithm to sort four numbers into ascending (from lowest to highest) order.
The result of adding, subtracting, or multiplying two integers might result in overflow but never __________ or __________.
A(n) __________ is an array of characters.

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