Independent random samples from approximately normal populations produced the results shown below. Completeparts a and b.Full data setOSample 139Sample 250452958304262515845303556572836344570a. Do the data present sufficient evidence to conclude that H-H2 *0? Use a = 0.05.Let u, be the mean of population 1 and p2 be the mean of population 2. Select the correct hypotheses below.O A. Ho: H1 -H2 = 0, H H -H2 #0O B. Ho: H -H2 = 0, H: H1 - H2>0OC. Ho: H1 -H2 = 0, H: H - H2 <0 Now find the test statistic.t3D(Round to two decimal places as needed.)Find the p-value.p-value DRound to two decimal places as needed.)Choose the correct conclusion below.O A. Reject Ho. There is sufficient evidence that the means differ.B. Reject Ho: There is insufficient evidence that the means differ.OC. Do not reject Ho. There is insufficient evidence that the means differ.O D. Do not reject Ho. There is sufficient evidence that the means differ.b. Construct a 90% confidence interval for (H1 - H2).The confidence interval is ( D-(Round to three decimal places as needed.)

Answered: Image /qna-images/answer/99f19f04-23f2-45b6-9cbb-a118605e94b5.jpg

Answered: Independent random samples from…

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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Question: Public transportation and the automobile are two methods an employee can use to get to work each day. Samples of times recorded for each methods are shown. Times are in minutes. Public Transportation: 28 29 32 37 33 25 29 32 41 34 Automobile: 29 31 33 32 34 30 31 32 35 33 A. Compute the sample mean time to get to work for each method. B. Compute the sample standard deviation for each method. C. On the basis of your results from parts (a) and (b), which method of transportation should be preferred? Explain.
Each of the sets of observations given below is a random sample drawn from a normal population A: 49 42 47 76 69 58 B: 49 44 50 58 70 C: 44 57 34 48 50 D: 58 54 64 60 53 64 52 42 Perform the analysis of variance test for the equality of means. Also apply LSD test if applicable.
Listed below are systolic blood pressure measurements (mm Hg) taken from the right and left arms of the same woman. Assume that the paired sample data is a simple random sample and that the differences have a distribution that is approximately normal. Use a 0.01 significance level to test for a difference between the measurements from the two arms. What can be concluded? Right arm Left arm OA. Ho: H0 H₁: Hg > 0 In this example, H is the mean value of the differences d for the population of all pairs of data, where each individual difference d is defined as the measurement from the right arm minus the measurement from the left arm. What are the null and alternative hypotheses for the hypothesis test? OC. Ho: Hg 0 H₁: Hg 0 7 w S 152 170 x mand H Identify the test statistic. t=(Round to two decimal places as needed.) Identify the P-value. P-value (Round to three decimal places as needed.) What is the conclusion based on the hypothesis test? than the significance level, Since the P-value…
1
Treatment Placebo 3. H1 H2 table. Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Complete parts (a) and (b) below. Use a 0.05 significance level for both parts. A study was done using a treatment group and a placebo group. The results are shown in the 27 40 In 2.39 2.65 0.95 0.57 a. Test the claim that the two samples are from populations with the same mean. What are the null and alternative hypotheses? O A. Ho: H1 = H2 O B. Ho: H1H2 D. Ho: H1 H2 The test statistic, t, is (Round to two decimal places as needed.) The P-value is (Round to three decimal places as needed.) State the conclusion for the test. O A. Fail to reject the null hypothesis. There is sufficient evidence to warrant rejection of the claim that the two samples are from populations with the same mean. O B. Reject the null hypothesis. There is not sufficient evidence to warrant rejection…
Which of the following samples will produce the largest value for a t statistic? Solect one: a. D = 10 with SS 40 b. D= 5 with SS = 20 O c. D= 10 with SS = 20 d. D = 5 with SS = 40
Please help me with this question.
Given below are the analysis of variance results from a Minitab display. Assume that you want to use a 0.05 significance level in testing the null hypothesis that the different samples come from populations with the same mean. Identify the p-value. Source DF SS MS F Factor 3 30 10.00 1.6 0.264 Error 50 6.25 Total 11 80 O A. 6.25 O B. 1.6 OC. 10.00 O D. 0.264 Click to select your answer. étv MacBook Air F10 F9 F7 30 888 *- F6 F3 esc F1 F2 & @ 7 4 5 2 3.
Consider the data below. Three random samples in different cities were selected. Water use per household per day were measured. City 1 City 2 City 3 70 66 66 70 64 66 55 45 54 60 41 61 65 58 65 45 44 65 55 46 Test the claim that the samples come from populations with the same mean. Assume all requirements have been met. Use a 5% level of significance. Identify the tail of the test. [ Select ] Find the P-value. I [ Select ) Will the null hypothesis be rejected? Select] Do the populations appear to have the same mean? [Sclect
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Given two dependent random samples with the following results: Population 1 48 29 32 29 38 31 28 Population 2 45 38 41 16 40 28 38 Use this data to find the 95% confidence interval for the true difference between the population means. Assume that both populations are normally distributed. Copy Data Step 2 of 4 : Calculate the sample standard deviation of the paired differences. Round your answer to six decimal places.
Given below are the analysis of variance results from a Minitab display. Assume that you want to use a 0.05 significance level in testing the null hypothesis that the different samples come from populations with the same mean. Identify the value of the test statistic. Source DF MS F Factor 3 13.500 4.500 5.17 0.011 Error 16 13.925 0.870 Total 19 27.425 Seleccione una: O A. 5.17 О В. 0.011 O C. 4.500 O D. 13.500

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