Answered: 16. Researchers claim that 60 tissues…

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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Transcribed Image Text:16. Researchers claim that 60 tissues are the average number of tissues a person uses during the course of a flu. The company who makes Kleenex brand tissues thinks that fewer of the tissues are needed. What are their null and alternative hypotheses? A. Ho: u=60 vs Ha: u>60 C. Ho: X=60 vs Ha: <60 B. Ho: u=60 vs Ha: U<60 D. Ho: μ<60 υs Ha: μ =60 17. A randomly selected sample of 1,000 college students was asked whether they had ever drunk alcohol. Sixteen percent (16% or 0.16) of the 1,000 students surveyed said they had. Which one of the following statements about the number 0.16 is correct? A. It is a sample proportion. B. It is a population proportion. C. It is a margin of error. D. It is a randomly chosen number. 18. A random sample of 100 voters in a community produced 59 voters in favour of candidate A. The observed value of the test statistic for testing the null hypothesis Ho:n = 0.5 versus the alternative hypothesis Ha:1 = 0.5 is: (a= 0.05) A. 1.80 В. 1.90 C. 1.83 D. 1.28 19. Given the information below, what kind of samples are being described? Sample 1: Resting heart rates of 35 individuals before drinking coffee. Sample 2: Resting heart rates of the same individuals after drinking coffee. A. Dependent samples B. Unknown samples C. Independent samples D. One sample 20. Given the information below, what kind of samples are being described? Sample 1: Test scores for 35 statistics students. Sample 2: Test scores for 42 biology students who do not study statistics. A. Dependent samples B. Unknown samples C. Independent samples D. One sample 21. Make a decision base from the given below. Two- tailed a= 0.01 n= 23 t= 3.92 test A. Fail to reject Ho B. Reject Ho C. Fail to reject Ha D. Reject Ha

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