You may need to use the appropriate appendix table or technology to answer this question.Given are five observations for two variables, x and y. (Round your answers to two decimal places.)X; 1 2 345461213(x* - x)21(a) Use sy = sVto estimate the standard deviation of ý* when x = 4.E(x, - x)2n(b) Use ý* + t/2a to develop a 95% confidence interval for the expected value of y when x = 4.to(x* - x)2I(x, - x)2(c) Use s= Spred1 +* +to estimate the standard deviation of an individual value of y when x = 4.n(d) Use ỹ* ± ta/25 predto develop a 95% prediction interval for y when x = 4.to

You may need to use the appropriate appendix table or technology to answer this question. Given are five observations for two variables, x and y. (Round your answers to two decimal places.) x; 1 2 3 4 5 4 6. 12 13 (a) Use s Sgn = sV 1 + (x* - x)2 to estimate the standard deviation of y when x = 4. E(x, - x) (b) Use î* + t2S * to develop a 95% confidence interval for the expected value of y when x = 4. to (x* - x)2 I(x, - x)2 (c) Use s Spred 1+ 1 to estimate the standard deviation of an individual value of y when x = 4. in (d) Use ý" ± t25pred to develop a 95% prediction interval for y when x = 4. to

You may need to use the appropriate appendix table or technology to answer this question. Given are five observations for two variables, x and y. (Round your answers to two decimal places.) x; 1 2 3 4 5 4 6. 12 13 (a) Use s Sgn = sV 1 + (x* - x)2 to estimate the standard deviation of y when x = 4. E(x, - x) (b) Use î* + t2S * to develop a 95% confidence interval for the expected value of y when x = 4. to (x* - x)2 I(x, - x)2 (c) Use s Spred 1+ 1 to estimate the standard deviation of an individual value of y when x = 4. in (d) Use ý" ± t25pred to develop a 95% prediction interval for y when x = 4. to

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 b Absolute standard deviation = Coefficient of variation = y = 1.20 (+0.02) x 10-8-3.60(±0.2) × 10-⁹ x Result = Absolute standard deviation = Coefficient of variation = C Result = d y=90.95 (±0.08) - 89.40(±0.06) +0.200(+0.004) Absolute standard deviation == Coefficient of variation = Result = ± y= y = 0.0040 (+0.0005) x 10.28 (+0.02) × 395(+1) Result = ± Absolute standard deviation = Coefficient of variation = % 329(+0.03) x 10-14 1.47 (+0.04) x 10-16 % % H % ±
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A population of students earned test scores distributed normally with a mean of 65 and a standard deviation of 9. Find the percent of scores with a grade of F. Identify the following variables: μ: σ: x1: x2:z1 = , z2 = The percent of students that earned a grade of F, between 0 and 60, is = % Enter your answers as numbers accurate to 2
The mean exam score for 44. male high school students are 19.9 and the population standard deviation is 5.2. The mean exam score for 55female high school students is 19.4 and the population standard deviation is 4.9. At α=0.01, can you reject the claim that male and female high school students have equal exam scores? Complete parts (a) through (e). (a) Identify the claim and state H0 and Ha. What is the claim? A. Male high school students have lower exam scores than female students. B. Male and female high school students have different exam scores. C. Male and female high school students have equal exam scores. D. Male high school students have greater exam scores than female students. What are H0 and Ha? Find the critical value(s) and identify the rejection region(s). The critical value(s) is/are Find the standardized test statistic z for μ1−μ2.
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5. Suppose the number of days it takes you to get a flu shot after it is available follows this equation: Y₂ = 30 - 2X₁ where y, is the number of days until you get the flu shot, and X, is the number of people you know who have the flu. Further, suppose on average you know 2.3 people who have the flu, with standard deviation 5. Suppose that the population has size m = 10. (a) Find the average time until you get the flu shot after it is available. (b) Find the standard deviation of time until you get the flu shot after it is available. (c) What is EY;?
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Q2. Assume we have two populations represent the mercury contamination (g/Km3) in two different European cities. The mean of mercury contamination in the first city is 50 g/Km3 with standard deviation of 1O, and mean of mercury contamination in the second city is 40 g/Km3 with standard deviation of 8 g/Km3. If a sample of n=9 is taken form first city and a sample of n=16 is taken form second city, what is the probability that the difference between these two sample means is less than 9 g/Km3? 0.0614 0.0359 0.3985 0.0992 0.6015
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The coefficients of variations of wages of male workers and female workers are 55% and 70% respectively, while the standard deviations are 22.0 and 15.4 respectively calculate the overall wages of all workers given that 80% of the workers are male?
what raw score in needed to reach the 90th perentile? a group of students take a statistics exam where the average was m=90 and the standard deviation was SD = 7.8. answer with raw scores, z scores and what in particular you shaded when creating a curve and the final answer.