PT United Tractor Tbk is the largest distributor of heavy equipment in Indonesia. Their daily productionfollows a normal probability distribution with a population mean of 200 and a population standarddeviation of 16. Recently, because the price of minerals product is getting higher due to Russia andUkraine conflict, the demand for heavy equipment has also increased. Therefore, Edhie Sarwono, theCEO, decided to implement a new production method. He would like to investigate whether there hasbeen an increase in the weekly production. Suppose, as production manager, you are assigned to dothis task. From a random sample of 30 production days, the mean is found to be 205.3. In order toprovide information for the CEO, you need to do several tasks below.a. Develop hypotheses to test whether there is an increase in production rate.b. Calculate the test statistics.c. Find the p-value and critical value from the table at 95% confidence level.d. Test the hypothesis using p-value approach and critical value approach.e. What conclusion can you give to the CEO?

The random variable X follows normal distribution. We have to test whether there is an increase in…

Answered: PT United Tractor Tbkis the largest…

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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