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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We have Ho : p = .4 and H1: p > .4. You run 50 experiments and find that the sample proportion is .42. Use alpha = .01 to test the hypothesis.
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.)
Answer the given problem below by following in hypothesis testing. Sample problem: Determine the weight of the students before and during the quarantine. Did the students lose more fat before the quarantine? Weight before quarantine: sample mean = 5.9 kg sample standard deviation = 4.1 kg sample size = n = 42 standard error = SEM1 = 4.1/ √42 = 0.633 Weight during quarantine: sample mean = 4.1 kg sample standard deviation = 3.7 kg sample size = n = 47 standard error = SEM2 = 3.7/ √47 = 0.540 measure of variability = sq root [(0.633)2 + (0.540)2] = 0.83 1. Determine the p-value = 0.03 (LOS= 95%; α=0.05) 2. Make a decision 3. Conclusion
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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The weekly expenditure on groceries of a random sample of 100 family households was recorded. It was estimated that the mean expenditure was approximately $240. With rising interest rates and petrol prices, it was anticipated that grocery expenditure might decrease. Which hypothesis test would you use to test this claim? 1.One tailed, one sample t-test 2.Two tailed, one sample t-test 3.One tailed, z-test 4.One-tailed Paired Samples t-test 5.Chi Square
10

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