<2.>VitalSourceTargv umrvony whu woulu go to the pronoDDUb. Interpret the margin of error.00.050.1Reporting on cheats What proportion of students are willingto report cheating by other students? A student project put thisquestion to an SRS of 172 undergraduates at a large universi-ty: "You witness two students cheating on a quiz. Do you goto the professor?" Only 11% answered "Yes." The dotplotshows the proportion who would go to the professor in eachof 1000 random samples of size 172 from a population where11% would go to the professor.17ili..SUI..0.150.20.25Simulated sample proportion who would say "Yes"Distribution of simulated proportion# samples1000mean0.11(39%SD0.024₁ Xa. Use the results of the simulation to approximate the margin oferror for Gallup's estimate of the proportion of U.S. adultswho were satisfied with the way things were going in theUnited States at the time of the poll.b. Interpret the margin of error.Twittering away The Pew Internet and American LifeProject asked a random sample of 2253 ILS adults "Do you

Given Information: Consider the results of the simulation: Distribution of simulated proportion…

Answered: 2. Reporting on cheats What proportion…

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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Suppose that a certain chromosone defect occurs in 12% of all sheep. A random sample of 200 sheep is to be obtained and analysed for the chromosone defect. What is the mean of the sampling distribution of the sample proportion?
a) observed value of the test statistic b) the distribution of the test statistic: either X12 , X42 or X22c) p value and if this shows strong evidence for an association
Consider the following random sample of data: -7, 5, -1, -1, 8, 1, 7, -4, 8, 80 a) What is the mean of the sample data? Round your response to at least 2 decimal places. Number b) If the outlier is removed, what is the mean of the remaining sample data? Round your response to at least 2 decimal places. Number
In a study comparing banks in two countries, a sample of 142 matched pairs of banks was formed. Each pair contained one bank from country x and one from country y. The pairings were made in such a way that the two members were as similar as possible in regard to such factors as size and age. The ratio of total loans outstanding to total assets was calculated for each of the banks. For this ratio, the sample mean difference (country x - country y) was 0.0579, and the sample standard deviation of the differences was 0.3086. Test, against a two-sided alternative, the null hypothesis that the two population means are equal. (Assume α = 0.01.) Click the icon to view the critical values of the Student's t distribution. Which of the following correctly states Ho and H₁ ? A. Ho: Mx Hy = 0 H₁: Hx-Hy >0 OC. Ho: Mx Hy ‡0 Hi HxHy=0 - O E. Ho: Mx Hy = 0 H₁: Hx-Hy <0 B. Ho: Mx Hy = 0 H₁: Hx-Hy #0 D. Ho: Hx-Hy = 0 H₁: Hx-Hy 20 OF. Ho: Mx Hy = = 0 H₁: Hx-Hy ≤0
In a study comparing banks in two countries, a sample of 142 matched pairs of banks was formed. Each pair contained one bank from country x and one from country y. The pairings were made in such a way that the two members were as similar as possible in regard to such factors as size and age. The ratio of total loans outstanding to total assets was calculated for each of the banks. For this ratio, the sample mean difference (country x - country y) was 0.0579, and the sample standard deviation of the differences was 0.3086. Test, against a two-sided alternative, the null hypothesis that the two population means are equal. (Assume α = 0.01.) Click the icon to view the critical values of the Student's t distribution. The test statistic is t = 2.236. (Round to three decimal places as needed.) The critical value(s) is(are) (Round to three decimal places as needed. Use a comma to separate answers as needed.)
2. Reporting on cheats What proportion of students are willing to report cheating by other students? A student project put this question to an SRS of 172 undergraduates at a large university: "You witness two students cheating on a quiz. Do you go to the professor?" Only 11% answered "Yes." The dotplot shows the proportion who would go to the professor in each of 1000 random samples of size 172 from a population where 11% would go to the professor. 17 0.1 0.15 0.2 0.25 Simulated sample proportion who would say "Yes" 0 0.05 Distribution of simulated proportion # samples 1000 mean 0.11 SD 0.024 (a) Use the results of the simulation to approximate the margin of error for Gallup's estimate of the proportion of U.S. adults who were satisfied with the way things were going in the United States at the time of the poll. (b) Interpret the margin of error.
ch 11 end. 5 : The XYZ Corporation is interested in possible differences in days worked by salaried employees in three departments in the financial area. A survey of 23 randomly chosen employees reveals the data shown below. Because of the casual sampling methodology in this survey, the sample sizes are unequal. Research question: Are the mean annual attendance rates the same for employees in these three departments?
Consider the following random sample of data: 9, -9, 0, 5, 10, 7, 1, -6, -1, 82 a) What is the mean of the sample data? Round your response to at least 2 decimal places. Number b) If the outlier is removed, what is the mean of the remaining sample data? Round your response to at least 2 decimal places. Number
Pavan.88.9
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Distribution of simulated proportion
Samples	Mean	SD
1000	0.11	0.024