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; 12 3 45Y, 46.12151(a) Use sp. = s(x*- x)?Y(x, - x)2to estimate the standard deviation of 9 when x = 5.(b) Use ŷ* + tw2sp. to develop a 95% confidence interval for the expected value of y when x= 5.to(x* -(c) Use spred - S 1+to estimate the standard deviation of an Individual value of y when x = 5.L(x, - x)2(d) Use 9* +t5 pred to develop a 95% prediction interval for y when x- 5.to6,

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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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Question 2 Save On a history test Patrick received a grade of 43 out of 50. The class mean was 35 with a standard deviation of 6. His girlfriend Kristin, in another section, received a grade of 87 out of 100. Her class mean was 75 with a standard deviation of 10. z-score for Patrick's grade (round to two decimal places) z-score for Kristin's grade = (round to two decimal places) Who received the higher grade relative to their respective classes? Why?
Please solve a question quickly I need this Answer at half time Quickly. Please
Suppose we observe X Bin(n, p) where n is known by design and p € (0, 1) is the parameter of interest. (a) Derive a UMP test for Ho: P ≤ po versus H₁ p > Po where po € (0, 1) is a fixed constant. ~ (b) Consider the specific case of = Po 0.5. Use the central limit theorem (normal approximation to the binomial) to determine the value of n such that a UMP test satisfies Pr(reject Holp = 0.5) = 0.05 and Pr(reject Holp = 0.8) = 0.9.
One of the z-score formulas will help on this question. Scores on the SAT test are normally distributed with a mean of 500 and standard deviation of 100 points. Pretend someone scored 400 on the math portion of the SAT test. What would be the z-score cut off for this score? A. 1.0 B. -1.0 C. 0 D. 2.0
Please answer part (a) and part (b)
I need help I do not know how to graph this
Hello, I need a little help trying to figure out how to get the Deviation from Mean and calculations. I would appreciate any assistance so that I can understand the lab.
The variable W represents the weight of potatoes buns sold at the bakery. This variable is normally distributed with mean 90 g and standard deviation 6 g. (a) (i) Explain the meaning of S6 . (ii) Find the mean and standard deviation of S6 . (ii) Hence, Calculate P ( S6 2 560 g).
Climate change and CO2 2011 Data collected fromaround the globe show that the earth is getting warmer.The most common theory relates climate change to anincrease in atmospheric levels of carbon dioxide (CO2),a greenhouse gas. The mean annual CO2 concentration inthe atmosphere (parts per million) is measured at the top of Mauna Loa in Hawaii, away from any local contami-nants. (Available at ftp://ftp.cmdl.noaa.gov/ccg/co2/ trends/co2_annmean_mlo.tx)The mean surface air temperature is recorded as thechange in °C relative to a base period of 1951 to 1980.(Available at data.giss.nasa.gov/gistemp/graphs_v3/)Here are a scatterplot and regression for the years from1959 to 2011:Dependent variable is TempR-squared = 82.3%s = 0.0985 with 53 - 2 = 51 degrees of freedomVariable Coefficient SE(Coeff) t-Ratio P-ValueIntercept -2.98861 0.2086 -14.3 ...0.0001CO2 0.0092 0.0006 15.4 ...0.0001a) Write the equation of the regression line.b) Is there evidence of an association between CO2 leveland global…
8. High levels of cholesterol in the blood increase the risk of heart disease. For 14-year-old boys, the distribution of blood cholesterol is approximately Normal with a mean of 170 milligrams of cholesterol per deciliter of blood (mg/dl) and a standard deviation of 20 mg/dl. Which equation could be used to solve for the 30th percentile of this distribution? x-170 (a)-0.30 = 20 (b) 0.30 = X-170 20 (c)-0.52 = (c) 0.30 = X-170 20 X-170 (d) 0.52= 20 170-x 20
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;?
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.

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