7:47 .ll LTE D 3:27 Exit In an experiment to determine whether there is a systematic difference between the weights obtained with two different mass balances, six specimens were weighed, in grams, on each balance. The following data were obtained: Specimen 12.31 12.34 9.60 9.58 3 10.06 10.07 6.21 6.20 6.49 6.47 10.30 10.29 Compute the test statistic. 0.058 0.170 0.379 0.415

7:47 .ll LTE D 3:27 Exit In an experiment to determine whether there is a systematic difference between the weights obtained with two different mass balances, six specimens were weighed, in grams, on each balance. The following data were obtained: Specimen 12.31 12.34 9.60 9.58 3 10.06 10.07 6.21 6.20 6.49 6.47 10.30 10.29 Compute the test statistic. 0.058 0.170 0.379 0.415

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 sample of birth weights of 48 girls was taken. Below are the results (in g): 2724.5 3340.1 3243.6 3442.1 2996.9 3042 3505 3161.8 4022.8 3362.9 3768.9 2951.9 3229.7 2997.5 3758.1 3350.2 3210.7 3684.3 3530.1 3132.7 2776.9 3492.7 2655.1 3790.9 3064.6 3744.6 3294.5 2654.7 3536.6 2781.1 3756.3 3531.5 3654.2 3505.1 4018.6 3038 3202.3 3006 3701.6 3451.4 2986.5 3541.2 3232.9 2966 3186 3550.3 3056.6 3467.1 x = 3314.6 g s = 347.35 g Use a 5% significance level to test the claim that the standard deviation of birth weights of girls is less than the standard deviation of birth weights of boys, which is 530 g. Round all answers to 3 decimal places if possible. Procedure: Select an answer Step 1. Hypotheses Set-Up: %3D Ho: Select an answer На: Select an answer The test is a Select an answer O test. Step 2. The significance level is a = Step 3. Compute the value of the test statistic: Select an answer >
--In an experiment to determine whether there is a systematic difference between the weights obtained with two different scales, 10 rock specimens were weighed, in grams, on each scale. The following data was obtained: 1 2 3 4 5 6 7 8 9 10 Weight on scale 1 11.14 15.38 8.33 10.30 23.44 9.13 13.46 6.44 12.51 19.35 Weight on scale 2 11.2 15.43 8.39 10.33 23.41 9.14 13.50 6.43 12.54 19.34 Construct a 96% confidence interval for the mean difference in weight between the two scales. Interpret the results. INTERPRET THE RESULTS
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In an experiment to determine whether there is a systematic difference between the weights obtained with two different scales, 10 rock specimens were weighed, in grams, on each scale. The following data were obtained: Specimen Weight on Scale 1 Weight on Scale 2 1 13.36 13.19 2 16.80 16.43 3 9.75 9.52 4 11.03 11.47 5 26.00 26.22 6 10.80 10.73 7 14.68 14.74 8 6.60 6.72 9 13.02 12.95 10 22.29 22.64 Let μ1 represent the mean weight on Scale 1 and =μd−μ1μ2.Can you conclude that the the mean weight on Scale 1is less than the mean weight on Scale 2? Use the = α0.05 level of significance. (a) State the null and alternate hypotheses. (b) Compute the test statistic. (c) State a conclusion.
Calculate sd
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