4. Is there a significant difference in the DO of water after 6-month period at 0.05 level of significance?BeforeAfterSampling Points16.75.326.85.436.95.746.35.856.55.366.75.46.65.77

Answered: Image /qna-images/answer/566e0927-62de-4fb8-8aa7-69dbb6a145bd.jpg

Answered: 4. Is there a significant difference in…

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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18)
6. In analyzing coal samples for ash content, three two of crucibles and types temperatures were used factorial arrangement. in a complete Crucible Temperature Steel Silica 825 8.7 7.2 9.3 9.1 875 9.4 9.6 9.7 9.8 925 10.1 10.2 10.4 10.7 Perform an ANOVA, conducting appropriate tests at the 5% significance level. Does there appear to be a difference between the two types of crucible with respect to average ash content?
Look at the attached images. Explain and analyse for INR group A and B. Thank you!
17.
16. A one-way ANOVA test is conducted at the 10% level of significance and finds the following results: n = 34, K = 4, x̅ = 16.62, MST = 30.303, and MSE = 12.356. What is the tail area of the ANOVA test? A. 0.083 D. 0.097 B. 0.178 C. 0.071
1. Develop 3 sigma level process control charts for monitoring weight of boxes that contain apples. You performed samplings over 5 weeks with sample size of 4 (n = 4). Draw variable control charts (mean and range). Calculate and show values for UCL, CL, and LCL using the factors provided in below table. Discuss your graphs and make your conclusion. Week1 Week2 Week3 Week4 Week5 week # of complaint Week complaints 1 1 1 7 2 2 2 6 20 21 21 24 30 3 Sample Size 8 n 2 3 4 5 10 15 20 25 3 3 21 20 23 21 20 4 7 A2 Control Limit Factor for Sample Mean 1.880 1.023 0.729 0.577 0.308 0.223 0.180 0.153 4 4 20 22 23 27 24 Factors for 3 Sigma level 5 2 D3 0 0 0 0 2. The number of monthly customer complaint at a hotel is monitored. Develop three sigma level control chart using the data below. Calculate and show values for UCL, CL, and LCL. Draw the control chart. Is everything under control? Discuss your conclusion. You will have to choose the proper control chart. 0.223 0.348 0.414 0.459 5 5 19 21 25…
3. In a sampling experiment s₁ = 3-6, s₂ = 2.0 and v₁ = 5, v₂ = 10. Is the difference between s₁ and s2 significant at the percent level?
4.4. PLEASE PROVIDE HANDWRITTEN SOLUTIONS.
8.What is the sample variance and the estimated standard error for a sample of n = 9 scores with SS = 72? a. s2= 9 and sM = 3 c. s²= 3 and sM = 3 b. s? = 9 and SM = 1 d. s2 = 3 and sM= 1 %3D
15. What is the minimum number of pairs needed to estimate the difference in the means of two populations using paired difference samples to within 3 units at 99% confidence given σd = 8.3? A. 153 D. 126 C. 51 B. 42
20. We have randomly selected 30 students from Section 1 and 25 students from Sections 2 of MSCI course at UWindsor from the last term. We recorded their grades A,B, C, D, or F. If we do a test on this data at 5% significance level, write down the critical value
7. Solve the ANOVA table Sample size per condition (n)=8 Source Between Conditions Between Subjects Residual Total SS df MS F 111.00 2 13.636 4.07 234.00

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4. Is there a significant difference in the DO of water after 6-month period at 0.05 level of significance? Before After Sampling Points 1 6.7 5.3 2 6.8 5.4 3 6.9 5.7 4 6.3 5.8 5 6.5 5.3 6 6.7 5.4 6.6 5.7 7