Sample 1Sample 2Assume that both populations are normally distributed.a) Test whether u, >H, at the a = 0.01 level of significance for the given sample data.b) Construct a 99% confidence interval about u, - H2.221451.544.47.111.2a) Perform a hypothesis test. Determine the null and alternative hypotheses. a) Perform a hypothesis test. Determine the null and alternative hypotheses.O A. Ho: H1 = H2, H,: Hy> H2O B. Hg: H1 = H2, H,: H1 H2O C. Ho: H1 = H2, H,iH #HzO D. Ho: H1 # H2. H,: Hy = H2Determine the test statistic.t=(Round to two decimal places as needed.)Determine the critical value(s). Select the correct choice below and fill in the answer box(es) within your choice.(Round to three decimal places as needed.)O A. The critical value isO B. The lower critical value isThe upper critical value isShould the hypothesis be rejected?(1)the null hypothesis because the test statistic (2)the critical region.b) Construct a 99% confidence interval about µ, - 42.The confidence interval is the range fromto(Round to two decimal places as needed. Use ascending order.)

Answered: Image /qna-images/answer/42433b40-6ce0-49f7-82a3-1938cbfdc118.jpg

Answered: a) Perform a hypothesis test. Determine…

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=0.01, z=2.79, h a:u1>u2 What is the decision making for this hypothesis test? A. Fail to reject B. Reject
Test the hypothesis using the P-value Approach. Be sure to verify the requirements of the test. H0: p= 0.2 versus H1: p>0.2 n= 125 x=40 a= 0.05
Determine the P-value for this hypothesis test. P-value = (Round to three decimal places as needed.)
Test for the overall significance of the model. Use =0.05. State the hypotheses. a. Ho: The model is not significant. vs. Ha: The model is significant. b. Ho: The model is significant. vs. Ha: The model is not significant.
Perform an independent-measures (samples) t-test in SPSS to determine if the starting salary (Variable "salary" "Starting Salary") of males is significantly higher than the starting salary of females. Use α = .01. Note that in SPSS: males = 1 and Females =0 a. The Independent Variable is and theThe Dependent Variable is b. The null hypothesis in symbols is
st 3 4 25 26 27 28 on 29 K Test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and then state the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim. Among 2073 passenger cars in a particular region, 222 had only rear license plates. Among 339 commercial trucks, 51 had only rear license plates. A reasonable hypothesis is that commercial trucks owners violate laws requiring front license plates at a higher rate than owners of passenger cars. Use a 0.10 significance level to test that hypothesis. a. Test the claim using a hypothesis test. b. Test the claim by constructing an appropriate confidence interval. a. Identify the null and alternative hypotheses for this test. Let population 1 correspond to the passenger cars and population 2 correspond to the commercial trucks. Let a success be a vehicle that only has a rear license plate. O A. Ho: P₁ = P2 H₁: P₁ P2 OB. Ho: P₁ P2 H₁: P₁ P2 OC.…
The average final exam score for the statistics course is 78%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is higher. The final exam scores for the 13 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 90, 84, 93, 77, 95, 79, 82, 70, 85, 70, 83, 100, 90 What can be concluded at the the a = 0.05 level of significance level of significance?
Hypertension It has been found that 26% of men 20 years and older suffer from hypertension (high blood pressure) and 31.5% of women are hypertensive. A random sample of 170 of each gender was selected from recent hospital records, and the following results were obtained. Can you conclude that a higher percentage of women have high blood pressure? Use a=0.01. Men 46 patients had high blood pressure Women 61 patients had high blood pressure Use P1 for the proportion of men with high blood pressure and round all intermediate calculations to at least three decimal places. Part 1 of 5 (a) State the hypotheses and identify the claim with the correct hypothesis. Ho:P, not claim H : P, < P2 claim This hypothesis test is a one-tailed Part 2 of 5 (b) Find the critical value(s). Round the answer(s) to two decimal places. there is more than one critical value, separate them with commas. Critical value(s):-2.33| Part: 2 / 5 Part 3 of 5 (c) Compute the test value. Round the intermediate calculations…
Answer all these questions A, B and C questions.
you did not answer this Let p be the true proportion of firms with a chief marketing officer currently on their top management team. To conduct the hypothesis test, the null and alternative hypotheses are formulated as: H₀: p̄ p̄ = 0.42'; Haa: p̄ p̄ ≠ 0.42 H₀: p ≥ 0.42; Haa: p < 0.42 H₀: p = 0.42; Haa: p ≠ 0.42 H₀: p ≤ 0.42; Haa: p > 0.42 If the null hypothesis is true, the sampling distribution of the sample proportion p̄ p̄ can be approximated by a _____ with a mean ______ and a standard deviation of ____ . The test statistic is _____ .
Which of the following is the value necessary for rejection (or nonacceptance) of the null hypothesis? 1. The critical value 2. The obtained value 3. Type I error 4. Type II error
We are testing a null hypothesis Ho:P1=P2 against an alternative hypothesis H7:P1 P2 where n = 50, x1 = 11, and n2 = 75, x2 =24. Find the value of the test statistic. 1.22 -1.89 -1.22 -.99

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