In 2018 (prior to SARS-CoV-2), 48% of our then enrolled postgraduate university students worked while studying (either part-time or full-time). We conducted a random survey of our current postgraduate students to see if theworking proportion had changed. We surveyed 80 of our postgraduate students and found that 46 were currently working in some capacity.a. Use the p-value approach with a 0.05 level of significance to determine if the proportion working has changed.The relevant hypothesis is:Ho: T vH1: T V(Give your answer as a decimal rounded to three decimal places, not as a percentage.)What is the test statistic?ZSTAT =D(Round your answer to two decimal places.)What is the p-value?The p-value is(Give your answer as a decimal rounded to three decimal places, not as a percentage.)

Wecwant to find null hypothesis , alternate hypothesis , test statistics and P-value

Answered: In 2018 (prior to SARS-CoV-2), 48% of…

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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#32). Please show work and answers, need to see how it’s done. Thank you!
A credit score is used by credit agencies (such as mortgage companies and banks) to assess the creditworthiness of individuals. Values range from 300 to 850 with a credit score over 700 considered to be a quality credit risk. According to a survey, the mean credit score is 705.6. A credit analyst wondered whether high-income individuals (incomes in excess of $100,000 per year) had higher credit scores. He obtained a random sample of 34 high-income individuals and found the sample mean credit score to be 724.4 with a standard deviation of 84.4. Conduct the appropriate test to determine if high-income individuals have higher credit scores at the α=0.05 level of significance. 1) Find: P-value 2) Make a conclusion regarding the hypothesis.
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