Can someone please explain it to me ASAP??!!! A CI is desired for the true average stray-load loss u (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. Assumethat stray-load loss is normally distributed witho = 2.9. (Round your answers to two decimal places.)(a) Compute a 95% CI for u when n = 25 and x = 51.2.watts(b) Compute a 95% CI for u when n = 100 and x = 51.2.watts(c) Compute a 99% CI for u when n = 100 and x = 51.2.watts(d) Compute an 82% CI for u when n = 100 and x = 51.2.watts(e) How large must n be if the width of the 99% interval for u is to be 1.0? (Round your answer up to the nearest whole number.)n =You may need to use the appropriate table in the Appendix of Tables to answer this question.Need Help?Read It

We have given that, Sample mean (x̄) = 51.2 and population standard deviation (σ) = 2.9 Then, We…

Answered: A CÍ is desired for the true average…

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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A CI is desired for the true average stray-load loss ? (watts) for a certain type of induction motor when the line current is held at 10 amps for a speed of 1500 rpm. Assume that stray-load loss is normally distributed with ? = 2.2. (Round your answers to two decimal places.) (a) Compute a 95% CI for ? when n = 25 and x = 53.7. , watts(b) Compute a 95% CI for ? when n = 100 and x = 53.7. , watts(c) Compute a 99% CI for ? when n = 100 and x = 53.7. , watts(d) Compute an 82% CI for ? when n = 100 and x = 53.7. , watts(e) How large must n be if the width of the 99% interval for ? is to be 1.0? (Round your answer up to the nearest whole number.)n = You may need to use the appropriate table in the Appendix of Tables to answer this question.
Find the pdf of e^x in terms of the pdf of X, base the answer to the case where X is uniformly distributed between 0 and 1
Find the mean and variance of the gamma distributionusing integration to obtain E(X) and E(X2).[Hint: Express the integrand in terms of a gammadensity.]
In an effort to make the distribution of income more nearly equal, the government of a country passes a tax law that changes the Lorenz curve from y = 0.98x2.1for one year to y = 0.32x2 + 0.68x for the next year. Find the Gini coefficient of income for both years. (Round your answers to three decimal places.) after before
X follows a gamma distribution with PDF f(x) = 4xe-2x , where X > 0(a) Derive E(Xn ).
The linearization of ex at x = 1 Estimate to five decimal places the magnitude of the error involved in replacing ex by 1 + x on the interval [0, 0.2]
Find the average value of y = √ax over [0, a]
Determine the equation of the normal line at the given x-value. 1) g(x) = sinx , x = 3? 4 2) f(x) = 3x3 − 2x + 5 , x = −2
Let X denote 0.025 × the ambient air temperature (˚C) and let Y denote the time (min) that it takes for a diesel engine to warm up. Assume that (X, Y) has joint probability density function f(x,y) = 1.6x (1 − x)(6 + 5x − 4y), for 0 < x < 1, 0 < y < 0.5. While you cannot guess the value of the correlation from the regression curve for X or Y, do they suggest whether it likely is positive or negative?
Can you find the amount of salt A in the tank at any time t?
A theoretical justification based on a certain material failure mechanism underlies the assumption that ductile strength X of a material has a lognormal distribution. Suppose the parameters are μ = 4.8 and σ = 0.11. 1. Compute E(X) and V(X). (Round your answers to three decimal places.) 2. Compute P(X > 125). (Round your answer to four decimal places.) 3. Compute P(110 ≤ X ≤ 125). (Round your answer to four decimal places.)
Consider the following 10 measurements about the cohesion of a soil: 12 kPa, 14 kPa, 15 kPa, 14.5 kPa, 16.0 kPa, 18 kPa, 15 kPa, 16.2 kPa, 17. 6 kPa, 13 kPa. Work out the solutions of the following two problems, assuming the cohesion follows the normal and lognormal distributions, respectively. (1) Draw the PDF of the cohesion; (2) Evaluate the probability that the cohesion based on the PDF is less than 5 kPa, 10 kPa, and 15 kPa; (3) Assess the effect of the type of distribution on the results.

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