(b) Find the critical value(s) and identify the rejection region(s).Enter the critical value(s) below. A personnel director in a particular state claims that the mean annual income is greater in one of the state's counties (county A) than it is in another county (county B). In County A, a random sample of 17 residents has a mean annual income of$41,200 and a standard deviation of $8600. In County B, a random sample of 8 residents has a mean annual income of $38,600 and a standard deviation of $5200. At a = 0.05, answer parts (a) through (e). Assume the population variances arenot equal. I convenient, use technology to solve the problem.C(a) Identify the claim and state Ho and HaWhich is the correct claim below?OA. "The mean annual incomes in counties A and B are not equal."B. "The mean annual income in county A is greater than in county B."OC. "The mean annual income in county A is less than in county B."OD. "The mean annual incomes in counties A and B are equal."What are Ho and H₂?The null hypothesis, Ho, is ₁ 5₂. The alternative hypothesis, Ha.is H₁ H2Which hypothesis is the claim?The null hypothesis, HoThe alternative hypothesis, H(b) Find the critical value(s) and identify the rejection region(s).Enter the critical value(s) below.(Type an integer or decimal rounded three decimal places a needed. Use a comma separate answers as needed.)

Answered: Image /qna-images/answer/893a7a0c-d443-4e25-89ad-41620624bbc2.jpg

Answered: (b) Find the critical value(s) and…

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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Consider the following. (Give your answers correct to one decimal place.) (a) Find the critical value x?(17, 0.025). (b) Find the critical value x(23, 0.10). (c) Find the critical value x(7, 0.90). (d) Find the critical value x(11, 0.975).
Exercise 2. Consider the process Y: RE, where Y = "total number of up-dots on 4 dice" and RE, ="roll 4 dice." Note that Y: RE, ~ X1 + X2 + X3 + X4, where the X{'s are lID with common PMF P(X1 = j) = 1j = 1, ..., 6). Here, X; measures the number of up-dots on the ith rolled die, i = 1,2,3,4. %3D (a) Compute mean(Y:RE,). Hint: E(Y) = E (X1 + X2 + X3 + X4). (b) Compute var(Y:RE,). Hint: var(Y) = var(X1 + X2 + X3 + X4). I generated data Y:s, where sample s is an outcome of RE, (N = 106). (c) Explain why you would expect the sample distribution dist (Y:s) to be approximately equal to the process distribution dist(Y:RE,). That is, what fundamental result leads to this expectation and why is it applicable? (d) I computed the sample mean of my data, mean(Y:s). What value [approximately] do you think it was? Explain why your approximate value is likely very reasonable. (e) I computed the sample variance of my data, var(Y:s). What value [approximately] do you think it was? Explain why your…
x3 +x²y² + xy³ Given the function f (x, y) = a) Find the critical points of f (x, y). b) Use the Hesse test to determine if these critical points are local minimum, maximum or saddle point.
Radioactive cesium (cesium-134 and cesium-137) is a waste product of nuclear reactors. A study examined the radioactive cesium tissue concentration of a random sample of 16 Pacific bluefin tuna, Thunnus orientalis, captured off the coast of California four months after the Fukushima nuclear reactor meltdown of 2011. Here are the findings, (the units are in becquerels per kilogram of dry tissue.) (a) Describe the unknown parameter using the context of this study and correct symbol for this parameter.(b) Construct a 99% confidence interval to estimate this parameter.(c) Give a practical interpretation for this confidence interval, using the context of this problem.
A humane society claims that less than 39% of U.S. households own a dog. In a random sample of 402 U.S. households, 155say they own a dog. At α=0.01, is there enough evidence to support the society's claim? (a) Write the claim mathematically and identify H0 and Ha. (b) Find the critical value(s) and identify the rejection region(s). (c) Find the standardized test statistic. (d) Decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim.
Find the x and y coordinates of all critical points of the function 1 f(x.y) = 5x* + 2xy +my? - 90 2-90 40 There are three critical points : (a , b), (c, d), and (f, g ) where a
B. Identify the rejection region and supply its critical value 16. Ho: μ-85 Ha:μ #85 a=0.1 n=29 o=unknown a. Left-Tailed, -2.467 b. Right-Tailed, 2.467 O c. Two-Tailed, +1.645 O d. Two-Tailed, 11.701 17. Ho: μ-3.5 Ha: μ>3.5 a=0.01 n=45 o-known O a. Left-Tailed, -2.467 b. Right-Tailed, 2.33 O c. Two-Tailed, 11.645 O d. Two-Tailed, ±1.701
set Hypothesis α df a) β > 0 0.025 11 b) β < 0 0.10 8 c) β < 0 0.25 26 d) β > 0 0.01 3 a)critical value= b)critical value= c)critical value= d)critical value=
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(b) Find the critical value(s) and identify the rejection region(s). Enter the critical value(s) below.