1. A psychologist is interested in investigating the proportion of depressed teenagers ina particular city. Using a sample of 40 teenagers, 16 were found to exhibit symptomsof depression. At a = 0.01, test the claim that more than 35% of teenagers who live inthe city are depressed.2. A researcher wishes to determine the proportion of college students who smokemarijuana. He determined that from a sample of 120 college students, 24 tested positiveof marijuana. Is it valid to infer that 20% of college students smoke marijuana? Usea = 0.05.3. A telecommunications analyst believes that more than 34% of Filipinos subscribedto any of the available postpaid plans. A random sample of 55 was chosen and thegathered data showed that 22 are postpaid subscribers. At 0.10 significance level, isthere sufficient evidence to conclude that more than 34% of Filipinos are postpaidsubscribers?

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1. A psychologist is interested in investigating the proportion of depressed teenagers in a particular city. Using a sample of 40 teenagers, 16 were found to exhibit symptoms of depression. At a = 0.01, test the claim that more than 35% of teenagers who live in the city are depressed.

1. A psychologist is interested in investigating the proportion of depressed teenagers in a particular city. Using a sample of 40 teenagers, 16 were found to exhibit symptoms of depression. At a = 0.01, test the claim that more than 35% of teenagers who live in the city are depressed.

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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