A study conducted in 2000 found that the mean number of children under 18 per household in a certain community was 1.7. Astatistician is trying to determine whether this number has changed in the last 6 years. Which of the following sets of hypotheses iscorrect for this test?Ο H : μ >1.7; Η : μ< 1.7.Ο H : μ 1.7; Η : μ + 1.7.O Ho : µ < 1.7; H :µ > 1.7.Ο H : μ Σ 1.7; Η : μ < 1.7.

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Answered: A study conducted in 2000 found that…

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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The times taken for a certain biological reaction to take place follow a Normal distribution with mean 46 minutes and standard deviation 5 minutes. i. What percentage of reactions will take longer than 52 minutes?
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Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate the mean score ?μ of those who took the MCAT on your campus, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 10.410.4 . Suppose that, unknown to you, the mean score of those taking the MCAT on your campus is 510510 . In answering the questions, use ?z‑scores rounded to two decimal places. (a) If you choose one student at random, what is the probability that the student's score is between 505505 and 515515 ? Use Table A, or software to calculate your answer. (Enter your answer rounded to four decimal places.) probability:?
Almost all medical schools in the United States require students to take the Medical College Admission Test (MCAT). To estimate the mean score ?μ of those who took the MCAT on your campus, you will obtain the scores of an SRS of students. The scores follow a Normal distribution, and from published information you know that the standard deviation is 10.410.4 . Suppose that, unknown to you, the mean score of those taking the MCAT on your campus is 510510 . (c) What is the probability that the mean score of your sample is between 505505 and 515515 ? (Enter your answer rounded to four decimal places.) probability: ?
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