In a random sample of 52 students at the university, 37 students (71.2% or 0.712 of the sample) say that they use a laptop computer Try AnotherIn a random sample of 52 students at a university, 37 students (71.2% or 0.712 of the sample) say that they use a laptop computer.(a) Calculate the conservative margin of error for the survey. (Round your answer to the nearest thousandth.)(b) Compute an approximate 95% confidence interval for the population proportion that uses a laptop computer. (Use the conservative margin of error.) (Round your answers to thenearest thousandth.)Need Help? Watch It

We have values are Sample size n = 52 students Sample proportion p^=0.712

Answered: In a random sample of 52 students at a…

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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A website invited women to visit its site to complete a survey, and 1500 respondent responses were recorded. When asked whether they would rather have more money or more sleep; 88% responded more money and 12% responded more sleep. 1) Identify the variable in this study. 2) What is the sample in this study? 3) What is the implied population?
Fifty-five percent of people who move from an area without fire ants to an area with fire ants get stung within a month. Write a possible reason (hypothesis) for why newcomers are more likely to be stung
In 2014, about 11.3% of U.S. workers belonged to a union. Suppose a sample 400 of U.S. workers is collected to determine whether union efforts to organize have increased union membership. Which if the following is the best description of what u- represents? O A. -is the average sample proportion for all possible samples of size 400 O B. H- is the average number of U.S. workers that belong to a union in all possible samples of size 400 C. O C.H- is the number of all U.S. workers that belong to a union. O D. H- is the proportion of U.S. workers in the sample that belong to a union O E. µ – is the proportion of all U.S. workers that belong to a union
An ABC News poll asked adults whether they felt genetically modified food was safe to eat. 35% felt it was safe, 52% felt it was not safe, and 13% had no opinion.A random sample of 120 adults was asked the same question at a local county fair. 40 people felt that genetically modified food was safe, 60 felt that it was not safe, and 20 had no opinion.At the 0.01 level of significance, is there sufficient evidence to conclude that the proportions differ from those reported in the survey? What is an apropriate alternate hypothesis for this problem? What is the critical value for this problem? What is the expected value for no opinion people? What is the Chi squared value for this problem? What is the appropriate decision?
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