from each population with bivariate normal distribution, samples were taken witheach size n = 4, as follows.65 8 5Population | X₁ = 10 6 98Population II X₂ = (₁5 45,11 10 12 11'By using a = 5%a). in population 1, test the hypothesis Ho : μ = (₁ Is this Ho rejected?5b). in population II, test the hypothesis Ho:μ=(₁). Is this Ho rejected?10c). test the hypothesis Ho: E₁ = ₂. Is this Horejected?

Given the bivariate normal distribution, with sample size n=4 from two populations as Population I…

Answered: from each population with bivariate…

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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Find the corresponding z-score for a sample of n = 16 and M = 38 taken from a population with a mean of μ= 40 and σ = 8.
The test statistic for testing Họ: u = 100 against Ha: u z 100 was t = 3.3, with P-value 0.001. Which of the following is the appropriate conclusion? Since the P-value is very small, we are unable to conclude that u = 100. In order to interpret the results, we must first know the sample size. Since the P-value is very small, we conclude that µ ± 100. Since the P-value is very small, we are unable to conclude that u # 100. Since the P-value is very small, we conclude that u = 100.
For a population with μ = 80 and σ = 10,the z-score corresponding to X = 85 would be?
6. Given a population Mean u=18.2. A sample size n = 36 with x =17.2 and s = 3.5. Test if population µ ±15at a= 0.1 level of significance.
A sample of n sludge specimens is selected and the pH of each one is determined. The one-sample t test will then be used to see if there is compelling evidence for concluding that true average pH is less than 7.0. What conclusion is appropriate in each of the following situations? USE SALT (a) n = 8, t= -2.8, a = 0.05 O Reject the null hypothesis. There is sufficient evidence that the true average pH is less than 7.0. O Reject the null hypothesis. There is not sufficient evidence that the true average pH is less than 7.0. O Do not reject the null hypothesis. There is sufficient evidence that the true average pH is less than 7.0. O Do not reject the null hypothesis. There is not sufficient evidence that the true average pH is less than 7.0. (b) n = 15, t= -3.5, a = 0.01 O Reject the null hypothesis. There is sufficient evidence that the true average pH is less than 7.0. O Reject the null hypothesis. There is not sufficient evidence that the true average pH is less than 7.0. O Do not…
Bb.29.
= A19 Assume we have observed independent samples ₁,..., 5 and y₁,... 13. The sample averages are x = 12.8 and y 11.2, and the population variances are known to be o² = 0.83 and ² = 0.23. Let μ and uy be the population means. We want to perform a z-test for the hypothesis Ho: x=y, with alternative Ho: My. What is the value of the test statistic for this test?
a sample is selected from a normal population with u=40 and σ =12. If the sample mean of M=36 corresponds to z=-2.00, then the sample size is n=64. is it true or false
We test the null hypothesis Ho:μ = 10 against the alternative Ha:μ<10 for a normal population with σ = 4. A random sample of 16 observations is drawn from the population, and we find the sample mean of these observations to be x̅ = 12. The P-value is?
We have a random sample of 36 data palrs where the sample mean of the differences is 1.18 and the sample standard devlation of the differences Is 3. Then the sample test statistic Is d = 1.18 Using these values, along with u = 0, we calculate the corresponding t value for the test statistic. 1.18 - 0 V V36 0.065
In a study of obesity the following results were obtained from samples of males and females between the ages of 20 and 75: n Males 150 Females 200 Number Overweight 21 48 Can we conclude from these data that in the sampled populations there is a difference in the proportions who are overweight? Let α = .05.
Qn5. Using the Kruskal-Wallis test at a = 0.01, can we conclude that the three populations represented by the three samples differ with respect to propellant burning rates? A Summarized data is given as follows: For System I: n = 5, Sum of the ranks i.e., R = 58 For System II:n, = 6, Sum of the ranks i.e., R, = 24 For System III: n, = 8, Sum of the ranks i.e., R, = 87. %3! ( Given that Table value of Chi Square = 9.21)

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