(b) A scientific group claims that the true population mean u is morethan 7 meters.(i) What is the form of the null and alternative hypotheses for testinggroups claim?O(No answer given)Ο 11) Ho :μ = 7, VS ΗA : μ>7||O (2) Ho : µ = 7, VS HA : H < 7O (3)Ho : µ = 7, VS HẠ : µ ± 7 The length of adult male dolphins is normally distributed with anunknown mean H. By some previous knowledge, the populationstandard deviation, is considered as known and is given by o =1m.We took a sample of n = 16 adult male dolphins, finding the samplemean x = 7.3 meters.

Givenclaim is that the true population mean μ is more than 7 metersMean(x)=7.3sample size(n)=16σ=1

Answered: (b) A scientific group claims that the…

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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11. A random sample of 88 eighth grade students' scores on a national mathematics assessment test has a mean score of 288. This test result prompts a state school administrator to declare that the mean score for the state's eighth graders on this exam is more than 280. Assume that the population standard deviation is 36. At α=0.09, is there enough evidence to support the administrator's claim? Complete parts (a) through (e). (a) Write the claim mathematically and identify H0 and Ha. Choose the correct answer below. A. H0: μ≤280 Ha: μ>280 (claim) Your answer is correct. B. H0: μ=280 Ha: μ>280 (claim) C. H0: μ=280 (claim) Ha: μ>280 D. H0: μ<280 Ha: μ≥280 (claim) E. H0: μ≥280 (claim) Ha: μ<280 F. H0: μ≤280 (claim) Ha: μ>280 (b) Find the standardized test statistic z, and its corresponding area. z=2.082.08 (Round to two decimal places as needed.) (c) Find the…
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(b) A scientific group claims that the true population mean u is more than 7 meters. (i) What is the form of the null and alternative hypotheses for testing groups claim? O(No answer given) O (1) Họ : µ = 7, VS HA : µ > 7 I| O (2) Ho : µ = 7, VS HA : µ < 7 (3) Ho : µ = 7, VS HA : µ 7