Comparing scales: In an experiment to determine whether there is a systematic difference between the weights obtained with two different scales, 10 rockspecimens were weighed, in grams, on each scale. The following data were obtained:Specimen Weight on Scale 1Weight on Scale 2112.3512.9615.9416.439.008.77411.7611.9924.3624.11610.5210.2714.1414.608.7.387.11913.3913.071021.5120.90Send data to ExcelLet u, represent the mean weight on Scale 1 and u = ,- H.Can you conclude that the mean weight on Scale 1 is greater than the mean weight on Scale 2? Use the a=0.05 level of significance.Part 1 of 5(a) State the null and alternate hypotheses.Ho: H, = 0NOV......28MacBook AirDII80888F4 Let u, represent the mean weight on Scale 1 and µ = H-H.Can you conclude that the mean weight on Scale 1 is greater than the mean weight on Scale 2? Use the a=0.05 level of significance.Part 1 of 5(a) State the null and alternate hypotheses.Ho: H = 0H: H, > 0This hypothesis test is a right-tailedV test.Part: 1 / 5Part 2 of 5Find the critical value. Round the answer to three decimal places. If there is more than one critical value, separate them with commas.The critical value(s):Officejet Pro 8600A の28..MacBook Airニ。888F4の

Answered: Comparing scales: In an experiment to…

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 Ministry of Health is interested in determining whether the average nicotine content of regular, menthol, and filtered cigarettes for 16 different brands differ. The data from the sample is provided below. Regular 1.1 1.7 1.1 1.4 1.2 1.7 1.8 1.2 1.1 1.7 1.6 1.5 1.2 1.1 1.1 1.4 Menthol 1.1 0.8 1.0 0.9 0.8 0.8 0.7 0.7 0.9 0.6 1.3 1.2 0.6 0.7 1.1 0.5 Filtered 0.4 1.0 1.2 1.1 1.3 0.6 1.1 1.1 0.9 1.0 0.8 0.2 0.8 1.1 0.9 1.1 1. Calculate manually by hand calculations the sum of squares, degrees of freedom, mean squares, F, factors of treatment, error, total. 2. If applicable, use the appropriate test to determine the average nicotine content which differs. In responding, construct and test any appropriate hypothesis.
Quarters. In Exercises 9-12, refer to the accompanying table of weights (grams) of quarters minted by the U.S. government. This table is available for download at www.TriolaStats.com Quarters: R Chart Treat the five measurements from each day as a sample and construct an R chart. What does the result suggest?
Bipin
Answer the following questions using the calculator image below: TInterval Inpt:Data State :36 Sx:1.72 n: 16 C-Level:.95 Calculate a.) What calculator function is being used? O 1-PropZInt O TInterval O ZInteval b.) What is the sample size?
i. The separate ratio estimate of the population mean using the following information is: Stratum Vi Ni Hxi 1 7.8 4.6 250 8.5 2 18.7 17.8 400 16.3 3 13.4 15.3 350 12.2 А. 14.25 В. 17.22 С. 12.55 D. 13.76 E. None of these
The type of household for the U.S. population and for a random sample of 411 households from a community in Montana are shown below.Type of Household Percent of U.S.Households Observed Numberof Households inthe CommunityMarried with children 26% 100Married, no children 29% 121Single parent 9% 35One person 25% 88Other (e.g., roommates, siblings) 11% 67 A)Find the value of the chi-square statistic for the sample. (Round the expected frequencies to two decimal places. Round the test statistic to three decimal places.) B)Find or estimate the P-value of the sample test statistic. (Round your answer to three decimal places.)
The observed statistic value is (provide your answer to two decimal places): Answer:
110 adults with gum disease were asked the number of times per week they used to floss before their diagnoses. The (incomplete) results are shown below: # of times floss per week Frequency Relative Frequency Cumulative Frequency 0 18 0.1636 18 1 9 0.0818 27 2 12 0.1091 39 3 13 0.1182 52 4 17 0.1545 69 5 12 0.1091 81 6 16 0.1455 7 110 a. Complete the table (Use 4 decimal places when applicable) b. What is the cumulative relative frequency for flossing 1 time per week? %
Listed below are heights in inches of fathers and their first sons. Father Son Difference 1. Complete the table and find the differences 2. Use a 5% level of significance to test the claim there is no difference in heights between fathers and first sons. 72 73 66 68 Sample Data 69 68 70 71 70 70 70 70 70 71 75 71 68 70
i. The separate ratio estimate of the population mean using the following information is: Stratum Nį Hxi 1 7.8 4.6 250 5.8 18.7 17.8 400 16.5 3 13.4 15.3 350 10.3 A. 14.25 В. 17.22 С. 12.55 D. 13.76 E. None of these
--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
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 presented in the table were obtained. Can you conclude that the mean weight differs between the scales? Use a=0.03. Specimen Weight on Scale 1 Weight on Scale 2 d; 1 11.23 11.27 -0.04 2 14.36 14.41 -0.05 3 8.33 8.35 -0.02 4. 10.50 10.52 -0.02 23.42 23.41 0.01 6 9.15 9.17 -0.02 7 13.47 13.52 -0.05 8 6.47 6.46 0.01 9 12.40 12.45 -0.05 10 19.38 19.35 0.03 What are the critical values? A. -1.833,1.833 B. -2.574,2.574 C. -2.398,2.398 D. -2.262,2.262 What is the test statistic and conclusion? A. -2.204; Reject Ho B. -2.204; Fail to reject Ho C. -2.108; Reject Ho D. -2.108; Fail to reject Ho

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