Following is a sample of six matched pairs.12Sample 1Sample 2 11Send data to ExcelPart: 0 / 41918Part 1 of 415 161910Let μ1and μ₂ represent the population means and let μd = μ₁ −μ₂.A test will be made of the hypotheses Ho: d=0 versus H₁: Hd>0.(a) Compute the differences.12Sample 1Sample 2 11Difference1918231415192417161023142417r

Sample 1 12 19 15 16 23 24 Sample 2 11 18 19 10 14 17

Answered: Following is a sample of six matched…

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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Test whether u, <µ2 at the a =0.05 level of significance for the sample data shown in the accompanying table. Assume that the populations are normally distributed. Click the icon to view the data table. Determine the null and alternative hypothesis for this test. O A. Ho:H1 = H2 Sample Data O B. Ho:H1
Two-Fa 23. The following data are from an experiment comparing three different treatment conditions: A 1 N = 15 2 5 ΣΧΧ-354 1 6. 9. 8 8 T = 10 T = 20 T = 30 SS = 14 SS = 30 SS = 30 %3D a. If the experiment uses an independent-measures design, can the researcher conclude that the treatments are significantly different? Test at the .05 level of significance. b. If the experiment is done with a repeated-measures design, should the researcher conclude that the treatments are significantly different? Set alpha at .05 again. c. Explain why the analyses in parts a and b lead to different conclusions. 24. The following data are from a repeated-measures study comparing two treatment conditions.
Suppose you want to test the claim that u, > H,. Two samples are randomly selected from normal populations. The sample statistics are given below. Assume that o #o5. At a level of significance of a = 0.01, when should you reject Ho? n, = 18, n2 =13, x, = 470, x2 = 455, s, = 40, s2 = 25 %3D O A. Reject H, if the standardized test statistic is greater than 2.681. B. Reject Ho if the standardized test statistic is greater than 1.699. O C. Reject H, if the standardized test statistic is greater than 3.055. D. Reject H, if the standardized test statistic is greater than 2.179.
In order to compare the life expectancies of three different brands of tires, 5 tires of each brand were randomly selected and were subjected to standard wear-testing procedures. Information regarding the three brands is shown below. Stone Bridge Michelle Nice Year Mean mileage (in 1000 miles) 42 46 41 Sample variance 3 2 5 Sample Size 5 5 5 Use the above data and test to see if the mean mileage for all three brands of tires is the same. Let α = .05. Complete the ANOVA table and show the details of calculation. a) State the null and alaternative hypotheses to be tested. b) Complete the table. The null hypothesis is to be tested at 95% confidence. You need to show all calculations. What do you conclude? Source of variation SS df MS F F critcal value Between Treatment SSTR= MSTR= Within Treatment SSE= MSE= Total SST=
1.3.2 Consider the output given below that was obtained using the One Proportion applet. Use information from the output to find the standardized statistic for a sample propor- tion value of 0.45. Probability of success (n): 0.30 Sample size (n): 25 Number of samples: 1000 O Animate Draw Samples Total = 1000 180 Mean = 0.301 SD = 0.091 120 60 0.08 0.16 0.24 0.32 0.40 0.48 0.56 0.64 Proportion of success
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10 11 12 13 14 15 16 Use a significance level of a=0.05 to test the claim that u = 19.6. The sample data consists of 10 scores for which x =20.1 and s=4.1. State the null and %3D alternative hypotheses, compute the value of the test statistic, and find the P-value for the sample. State your conclusions abcut the clalm. do H:H=19.6 H:Hz 19.6 O Test statistic: t=0.3856. P-Value: P=0.7087, Reject H. : u = 19.6. Since P>a, there is sufficient evidence to support the claim that the mean is different from 19.6. H :µ=20.1 H: Hz 20.1 O Test statistic: t= 20.1. P-Value: P=0.7087. Accept H: u = 20.1. Since P>a, there is not sufficient evidence to support the claim that the mean is different from 20.1. Ho: H= 19.6 H: uz 19.6 Submit Assignment Continue 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use Privacy Accessibility DII & %24 7 t e f

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