What is the sample and corresponding population in this study ? 91 percent of 16-24 year olds use social networks like instagram, snapchat, twitter and Facebook. A study done by the UK's Royal Society for Public Health (RSPH) and the YounHealth Movement surveyed 1,500 randomly selected people ages 14 to 24 about how socianetworking sites and apps impact their mental health, including anxiety, depression, self-identity, and body image. The goal of the study was to rate social media platforms based ontheir overall impact on users. Their results indicated that Instagram had the most negativeimpact followed by Snapchat, Facebook, Twitter and, the most positive, Youtube.udyroe re

Introduction: The study assigns ratings to the different social media platforms, depending upon…

Answered: What is the sample and corresponding…

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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We wish to gather some information relating to the average time a hospitalized Eagle Flu patient remains in the hospital. We randomly sample 16 cured formerly hospitalized Eagle Flu patients and these were the number of days spent in the hospital: 6.09, 8.04, 6.43, 8.58, 10.34, 5.40, 9.87, 9.24, 9.18, 5.06, 5.39, 5.89, 11.91, 8.94, 5.68, 9.85Many surveys of flu hospital stays show that hospitalization length is normally distributed. So, we assume that our sample comes from a normal population with unknown mean of μ days and an unknown standard deviation of σ days. We would like to test whether the average hospital stay length is less than 8.1 days..The null hypothesis is thus H0:μ=8.1 . We will test this against the alternative Ha We want to test at the 8% level.Let x = the sample mean and s = the sample standard deviation.f) Calculate the critical value, tstar, for your test.(negative value)
. In order to estimate the difference between the average Miles per Gallon of two different models of automobiles, samples are taken and the following information is collected.Model A Model BSample Size 60 55Sample Mean 28 25Sample Variance 16 9
Consider the following random sample of data: 13, 24, 29, 16, 22, 5, 10, 1, 105, 18 a) What is the median of the sample data? Round your response to 2 decimal places. Number b) If the outlier is removed, what is the median of the remaining sample data? Number
Define population and sample. List typical parameters from population and sample statistics.
What statistical methods are typically used in an inferential study?
If you have a study design that requires two different samples, what sort of test might you consider? Matched samples test Independent samples test
What statistical test is most appropriate for comparing the proportions of two categories of two independent groups?
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
If the sample size is 30 and the mean score for football players are 5.6, mean score for basketball players are 7.8, and mean score for baseball players are 4.8, what is the SS between of this study?
Consider the following random sample of data: 5, 10, 2, 4, 4,-4, -7, -5, 8, 84 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
The within subjects ANOVA may be used with
a researcher uses an anonymous survey to investigate the television-viewing habits of 100 American adolescents. he plans to make infrence about tv habits and the american based survery the entire group of american adolescents is an example of? sample, population, parameter, and statistic?

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