Consider the following hypothesis test.Но: М1-М2=0Ha: M₁ M₂ #0The following results are from independent samples taken from two populations.Sample 1n₁ 35X1= 13.6Sample 2= 40=n₂==x2S1₁ = 5.7S₂ = 8.1(a) What is the value of the test statistic? (Use x₁ - x₂. Round your answer to three decimal places.)10.1(b) What is the degrees of freedom for the t distribution? (Round your answer down to the nearest integer.)(c) What is the p-value? (Round your answer to four decimal places.)p-value(d) At a = 0.05, what is your conclusion?-Reject Ho. There is sufficient evidence to conclude that μ₁ − μ₂ ‡ 0.Reject Ho. There is insufficient evidence to conclude that µ₁ − µ₂ ‡ 0.Do not Reject Ho. There is insufficient evidence to conclude that μ₁ − M₂ ‡ O.Do not Reject Ho. There is sufficient evidence to conclude that μ₁ −μ₂ ‡ O.-

The results are:Sample 1: Sample 2:

Answered: Consider the following hypothesis test.…

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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The following results are for two independent samples taken from the two populations. Sample 1 n₁ = 80 X₁ = 104 01 = 8.5 Sample 2 n₂ = x2 = 70 = 106 02 = 7.4 (a) What is the value of the test statistic? (Round your answer to two decimal places.) (b) What is the p-value? (Round your answer to four decimal places.)
Questions Exercise 10.29 Algo (Inferences About the Difference Between Two Population Proportions) 1. 2. Consider the hypothesis test below. Ho P₁ P2 ≤0 Ha P1 P20 The following results are for independent samples taken from the two populations. b. With a = 0.05, what is your hypothesis testing conclusion? - Select your answer - Sample 1 n1 = 200 P1 0.23 Use pooled estimator of p. a. What is the p-value (to 4 decimals)? Use Table 1 from Appendix B. Icon Key = + Sample 2 N2 = 300 P2 = 0.15 Exercise 10.29 Algo (Inferences About the Difference Between Two Population Proportions) ◄ Question 2 of 2 Hint(s) Check My Work Hint(s) Check My Work ◄ Question 2 of 2
please answer d, e, f f; accept, reject, fail to reject
Question Help Y 12.2.79 The number of successes and the sample size for a simple random sample from a population are given below. x = 8, n = 40, Ho:p=0.4, H2: p< 0.4, a = 0.01 a. Determine the sample proportion. b. Decide whether using the one-proportion z-test is appropriate. c. If appropriate, use the one-proportion z-test to perform the specified hypothesis test. Click here to view a table of areas under the standard normal curve for negative values of z. Click here to view a table of areas under the standard normal curve for positive values of z. c. Determine the test statistic, if appropriate. Select the correct choice below and, if necessary, fill in the answer box to complete your answer. z= - 2.58 (Round to two decimal places as needed.) B. The one-proportion z-test is not appropriate. Identify the critical value(s), if appropriate. Select the correct choice below and, if necessary, fill in the answer box to complete your answer. A. ±Za/2 (Round to two decimal places as…
What are the hypotheses for the test? A. H0: β1≠0 and Ha: β1=0 B. H0: β1=0 and Ha: β1<0 C. H0: β1=0 and Ha: β1>0 Your answer is not correct. D. H0: β1=0 and Ha: β1≠0 This is the correct answer. What is the test statistic? t= (Round to two decimal places as needed.) Find the P-value. P-value= (Round to three decimal places as needed.) Part 4 Which of the following is the correct conclusion for the hypothesis test? A. Do not reject H0; the data provide sufficient evidence to conclude that x is useful for predicting y. B. Reject H0; the data do not provide sufficient evidence to conclude that x is useful for predicting y. C. Do not reject H0; the data do not provide sufficient evidence to conclude that x is useful for predicting y. Your answer is correct. D. Reject H0; the data provide sufficient evidence to conclude that x is useful for predicting y. Part 5 b. Find a 95%…
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Consider testing the hypotheses Ho: p 0.4 versus Hai p> 0.4. Four possible sample statistics, along with four possible p-values, are given. Match the statistics to their p-values. p= 0.42 p=0.38 p= 0.51 p= 0.46 D
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Determine the null and alternative hypotheses
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I In 2000, 6.1% of people used marijuana. This year, a company wishes to use their employment drug screening to test a claim. They take a simple random sample of 2848 job applicants and find that 145 individuals fail the drug test for marijuana. They want to test the claim that the proportion of the population failing the test is lower than 6.1%. Use .10 for the significance level. Round to three decimal places where appropriate. Hypotheses: Ho:p=6.1%Ho:p=6.1% H1:p<6.1%H1:p<6.1% Test Statistic: z = Critical Value: z = p-value: Conclusion About the Null: Reject the null hypothesis Fail to reject the null hypothesis Conclusion About the Claim: There is sufficient evidence to support the claim that the proportion of the population failing the test is lower than 6.1% There is NOT sufficient evidence to support the claim that the proportion of the population failing the test is lower than 6.1% There is sufficient evidence to warrant rejection of the claim that the…

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