Find the critical value for n1 = 20, n2 = 25, α = 0.2% and HA: µ ≠

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Answered: Find the critical value for n1 = 20, n2…

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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For a population with µ = 40 and σ = 8, what is the X value corresponding to z = 1.50?
Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 138 to 187 cm and weights of 40 to 150 kg. Let the predictor variable x be the first variable given. The 100 paired measurements yield x=167.94 cm, y=81.54 kg, r=0.261, P value=0.009, and y=−102+1.03x. Find the best predicted value of y (weight) given an adult male who is 181 cm tall. Use a 0.10 significance level.
Match each Test Situation with the correct Critical Value. For a two-sided test, find only the positive value. Test Situation Ha: P1 P2 + 0 and a = 0.001 Ha:Pi – P2 7 0 and a = 0.02 Ha:P1 – p2 0 and a = 0.005 Ha: P1 – P2 > 0 and a = 0.04 Critical Value a. 1.751 b. 2.326 с. 2.576 d. -1.960 е. 3.291
Can someone calculate this problem and explain it to me?
Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 135 to 188 cm and weights of 39 to 150 kg. Let the variable x be the height. The 100 paired measurements yield x=167.08 cm, y=81.32 kg, r=0.254, and y=−109+1.07x. Find the best predicted value of y (weight) given an adult male who is 163 cm tall. Use a 0.05 significance level. The best predicted value of y for an adult male who is 163 cm tall is kg. (Round to two decimal places as needed.)
In a test of H0: µ=10 against HA: µ<10, a sample of size 100 produces Z = -2.01 for the value of the test statistic. Thus the p-value is approximately equal to:
A new insecticide is advertised to kill more than 95% roaches upon contact. In a laboratory test, the insecticide was applied to 400 roaches and 384 died immediately after contact. Is this sufficient evidence to support the advertised claim? Use α=0.05. (c) p-value for the problem above i
An oil company is considering introducing an additive into its gasoline, hoping to increase the average mileage per liter.. The engineers at the oil company's group are considering introducing an additive into their gasoline, hoping to increase the average mileage per liter. The research group's engineers tested engineers tested 32 cars with regular gasoline and another 39 cars with gasoline containing the additive. With the additive. From previous studies it is estimated that: Mileage per liter without additive: μ = 14.2 km, s = 3.24 km Mileage per liter with additive: u = 15.4 km, s = 5.56 km. a) What is the probability that the average kilometers traveled per liter in the sample of cars with additive is greater than 14.8 km? of cars with additive is greater than 14.8 km? b) If it is estimated that the variances of the kilometers traveled with and without additive are the same, what is the probability that in the samples, the average kilometers traveled per liter with the new…
For a population with μ = 80 and σ = 10,the z-score corresponding to X = 85 would be?
Match each Test Situation with the correct Critical Value. For a two-sided test, find only the positive value. Test Situation Two samples, 1 = 25.3, I2 H.: P1 - 2 po, and a 0.01 %3D Two samples, n = 28, Ha: µd > 0, and a 0.01 dv One sample, ni = - 35, п2 41, Ha: p1 – p2 0, and a = 0.01 %3D %3D One sample of x's and y's, n = 114, Ha: p < 0, and a = 0.001 One sample, o is known, n = 68, Ha:µ # Ho, and a = 0.05 One sample, o is unknown, n = 76, H. : µ < Ho, and a 0.05 Critical Value a. 1.960 b. -3.165 C. 2.473 d. 2.326 e. 2.576 f. -1.294 g. -1.665 h. 2.426
Find the p-value of the test H0 : μ = 100 when Hα : μ > 100 and z = 2.17 .0251 .0150 .0199 .0193
If H1: μ1 – μ0 > 0 and α= 0.05, what should your sample size be to achieve power = 0.9 if you're only interested in δ = 0.1? The answer is: 857. Please explain and provide a solution to this problem.

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