A soul2.hkuspace.hku.hkxt Rewriter an...Introducing Vide...www.lijern.com/..PKI View of PodcasA tutorial school has been running IELTS mock examination for many years. Below is the summarypresented by the tutorial school related to the IELTS mock examination in one of the many online classesselected randomly in year 2022.IELTS score in mock examinationNumber of students<456.158109.3A report presented by this tutorial school 5 years ago indicated that the population mean score of IELTS mockexamination was 7.05 points and the population proportion of students got 7 points or above was 0.67.(a) Construct a 95% confidence interval estimate of population mean score a student get in the IELTS mockexamination in 2022.(b) Test, at 1% level of significance, if the population proportion of students get 7 points or above in 2022 ishigher than that in year 2017.(The report must include the (i) null hypothesis and alternative hypothesis,(ii) rejection region(s), (iii) calculation of test statistics, and (iv) conclusion.)(c) If the confidence interval estimate in part (a) is constructed at 99% instead of 95%, would the interval be(I) wider, (II) narrower, or (III) no change in width?(State your answer, no explanation is needed inpart (c).)The entries in Table I are the probabilities that a random variable having thestandard normal distribution will take on a value between 0 andz. They are given

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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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