CottonWeightPercentObservations157715119.20121712181825141919181830192522192335710111511(a) Is there evidence to support the claim that cotton con-tent affects the mean tensile strength? Usea = 0.05.(b) Use the Fisher LSD method to make comparisonsbetween the pairs of means. What conclusions can youdraw?(c) Analyze the residuals from this experiment and com-ment on model adequacy.a 00

Answered: Cotton Weight Percent Observations 15 7…

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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To determine if their 1.33 centimeter galvanized pipes are properly adjusted, Fogarty Manufacturing has decided to use an X-Chart which uses the range to estimate the variability in the sample. Answer How to enter your answer (ope Step 2 of 7: What is the Upper Control Limit? Round your answer to three decimal places. 234 Table 5 6 Control Chart 7 8 Period obs1 obs2 obs3 obs4 obs5 Sample Mean Sample Range 1 1.34 1.29 1.35 1.33 1.35 1.3320 1.35 1.35 1.3300 1.34 1.35 1.3360 1.29 1.38 1.28 1.32 1.33 1.34 1.36 1.29 1.37 1.35 1.30 1.29 1.31 1.33 1.31 1.32 1.31 1.3340 1.32 1.38 1.3260 1.31 1.34 1.3180 1.29 1.33 1.3300 1.34 1.38 1.35 1.33 1.31 1.30 1.3300 9 1.34 1.37 1.28 1.3440 1.35 1.32 1.36 1.37 1.28 1.36 1.38 1.3400 10 1.37 1.29 1.30 1.3080 1.30 1.32 1.29 11 1.35 12 1.36 1.32 1.31 1.30 1.35 1.3280 13 1.29 1.37 1.35 1.32 1.32 1.3300 14 1.35 1.35 1.34 1.32 1.34 1.3400 15 1.32 1.36 1.29 1.32 1.35 1.3280 Average Values Copy Table The average of the selected cell(s) is 1.360. Copy Value 0.06…
What is more appropriate to use for your data set: the one-tailed t-Test or the two-tailed t-Test. Why? Would your APA write-up differ depending on which you used?
Chicken diet and weight: Compare the effects of six types of feed: casein, horsebean, linseed, meat meal, soybean, and sunflower. The ANOVA output below can be used to test for differences between the mean weights of chicks on different diets. df Sum Sq Mean Sq F value Pr(>F) feed 5 231129.16 46225.83 15.36 0.0000 residuals 65 195556.02 3008.55 If we conducted a hypothesis test to determine if these data provide convincing evidence that the mean weight of chicks varies across some (or all) groups we would find a difference between mean weight of chicks between at least two of the diets using an overall αα = 0.05. Mean SD n casein 323.58 64.43 12 horsebean 160.2 38.63 10 linseed 218.75 52.24 12 meatmeal 276.91 64.9 11 soybean 246.43 54.13 14 sunflower 328.92 48.84 12 Now use the summary above to test that casein and horsebean have a different effect on mean weights of chicks.Find the alpha level to use for this pairwise comparison to four…
Use the information below to answer the PULL STRENGTH questions that follow. Data from "Applied Statistics and Probability for Engineers", Fourth Edition, by Douglas C. Montgomery & George C. Runger. The Excel multiple regression output below is for predicting pull strength from wire length and die height. MULTIPLE REGRESSION EXCEL OUTPUT (PULL STRENGTH) SUMMARY OUTPUT Regression Statistics Multiple R 0.990523843 R Square 0.981137483 Adjusted R Square 0.979422709 Standard Error 2.288046833 Observations 25 ANOVA df S MS Significance F Regression 5990.771221 2995.385611 572.1671503 1.07546E-19 Residual 22 115.1734828 5.235158308 Total 24 6105.944704 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept 2.263791434 1.060066238 2.135518851 0.04409945 0.065348623 4.462234246 Wire Length 2.744269643 0.093523844 29.34299438 3.90691E-19 2.550313062 2.938226225 Die Height 0.012527811 0.002798419 4.476746229 0.000188266 0.006724246 0.018331377
Chest Deceleration Measurements (g) from a Standard Crash Test Small 44 39 37 54 39 44 42 Midsize 36 53 43 42 52 49 41 Large 32 45 41 38 37 38 33 SPSS Results Sum of Squares df Mean Square F Sig. Between Groups 200.857 2 100.429 3.288 0.061 Within Groups 549.714 18 30.540 Total 750.571 20
Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water. The raw data provided in table below. Does the data suggest that the true average concentration in the bottom water exceeds that of surface water? Use ?=0.01.
Chapter 9, Section 2, Exercise 030 Use the following ANOVA table for regression to answer the questions. Analysis of Variance Source DF SS MS F P Regression 1 304.5 304.5 2.01 0.158 Residual Error 174 26361.0 151.5 Total 175 26665.5 Give the F-statistic and p-value.Enter the exact answers.The F-statistic is=The p-value is=
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IQ scores for three different blood lead levels was measured. If we use three categories of blood lead levels with measured verbal IQ scores, we get the computer output which is summarized in table form. Using a 0.05 significance test, test the claim that the three categories of blood lead level have the same mean verbal IQ score. Does exposure to lead appear to have an effect on verbal IQ scores? Interpret the table below. Source of variation df Sum of squares Mean squares Computed f p-value LEAD 2 142 71 0.39 0.677 Error 118 21441 182 Total 120 21584
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