an experiment on immunization cattle from tuberculosis the following results were obtained. Affected Not affected Inoculated 12 28 Not inoculated 13 7 Examine the effect of vaccine in controlling the incidence of the disease. (Chi

an experiment on immunization cattle from tuberculosis the following results were obtained. Affected Not affected Inoculated 12 28 Not inoculated 13 7 Examine the effect of vaccine in controlling the incidence of the disease. (Chi

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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In one study, the effect on lung volume after 6 months of a new medication was investigated. The results of the study can be seen in the table below. You can assume that the measurement values are normally distributed. important with complete solution. Investigate whether the positive effect of the medication can be demonstrated at the 5% level. Person 1 Person 2 Person 3 Person 4 Person 5 Person 6 Person 7 Person 8 Person 9 Person 10 Person 111 Person 12 Before 8.7 8.9 9.5 8.1 7.7 8.6 8.1 10.5 8.7 8.9 9.5 10 After 10.5 9.3 10.4 9.9 9.8 8.9 7.2 9.6 9 9.5 9.9 10.5
The following data are from an independent-measures experiment comparing two treatment conditions. Treatment 1 Treatment 2 4 19 5 11 12 18 10 10 10 12 7 14 A. Do these data indicate a significant difference between the treatments at the .05 level of significance? M1 = _____________________________ SS1 = _____________________________ M2 = _____________________________ SS2 = _____________________________ tcritical = _________________________ sp² =…
An independent-measures study comparing two treatment conditions with n = 6 in each sample produces t = 4.00. What is the value of r2 for this study?
A researcher wanted to determine if using an octane booster would increase gasoline mileage. A random sample of seven cars was selected; the cars were driven for two weeks without the booster and two weeks with the booster.
An experiment was conducted to investigate the effects of the concentrations of sulfuric acid (H₂SO4) and calcium chloride (CaCl₂) on the amount of black mud precipitate in the treatment of alkaline wastewater. There were three levels of each concentration, and two replicates of the experiment were made at each combination of levels. The relevant statistical analysis is provided in the following table. Source DF SS MS F P 2 457.65 228.83 8.845 0.008 H₂SO4 CaCl₂ 2 38783 19391 749.53 0.000 Interaction 4 279.78 69.946 2.704 0.099 Error 9 232.85 25.872 Total 17 39753 a) The appropriate statistical analysis to test would be: a. One-way ANOVA b. Two-way ANOVA C. Three-way ANOVA d. Two-Sample t-test b) Does there appear to be an interaction between concentration of sulfuric acid and calcium chloride at the .05 level? What does this say about the additive model? c) Can the effect of concentration of sulfuric acid on amount of black mud precipitate in the treatment of alkaline wastewater be…
comparison of the precisions of two machines developed for extracting juice from oranges is to be made using the following data. Is there sufficient evidence to indicate that there is a difference in the precision of the two machines at the 5% level of significance? Machine A Machine B s2 = 1.4 ounces2 s2 = 3.1 ounces2 n=25 n=20
The Influence of Color Priming and Forewarning on Anagram Performance Colors are an essential part of life, from warning us of poisonous creatures to describing our emotions, they have proven their worth. Certain colors can be perceived in specific situations or attributed to a particular emotion. For instance, priming of sadness can lead to perception of the color blue, whereas priming of anger can lead to perception of the color red (Fetterman, Robinson, Gordon, & Elliot, 2011). The central aim of our study is to explore the effect priming with a specific color has on anagram performance. Priming is defined as the unconscious influence that a stimulus has on the agility or accuracy in performing a task (Schacter & Rajendra, 2001). According to Jefferis and Fazio (2008), priming impacts behaviors by informing the person if they have met the demands of the situation. The influence priming has on behavior is shaped by what one perceives in a particular situation. For example,…
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The data below are from a study comparing three different treatment conditions: Treatment 1 Treatment 2 Treatment 3 0 1 6 1 4 5 0 1 6 3 2 3 T = 4 T = 8 T = 20 SS = 6 SS = 6 SS = 6 N = 12 G = 32 ƩX2= 138 Conduct a single-factor independent-measures ANOVA to test the hypothesis that there are significant differences in the mean scores among the three treatment conditions. Use α = .01. a. The alternative hypothesis is
A newly installed automatic gate system was being tested to see if the number of failures in 1,000 entry attempts was the same as the number of failures in 1,000 exit attempts. A random sample of eight delivery trucks was selected for data collection. Do these sample results show that there is a significant difference between entry and exit gate failures? Use α = 0.05. Truck 1 Truck 2 Truck 3 Truck 4 Truck 5 Truck 6 Truck 7 Truck 8 Entry failures 44 42 53 56 62 53 48 43 Exit failures 48 50 55 60 57 48 50 48 Click here for the Excel Data File (b) Find the test statistic tcalc. (Round your answer to 3 decimal places. A negative value should be indicated by a minus sign.) (c) Find the critical value tcrit for α = 0.05. (Round your answer to 3 decimal places. A negative value should be indicated by a minus sign.) (d) Find the p-value. (Round your answer to 4 decimal places.) (e) State your conclusion. Automated Gate: Number of…