Question 3(a) The mean wage for all 5500 employees who work at a large company is RM12.50 perhour and the standard deviation is RM1.70 per hour. Let i be the mean wage per hourfor a random sample of certain employees selected from this company. Find the meanand standard deviation of f for a sample size of 50.(b) A sample of 1500 cakes sold recently in a bakery gave the mean price of cakes equal toRM60.40. The population standard deviation of the prices of cakes in this bakery isRM3.50. Construct a 95% confidence interval for the mean price of all cakes in thisbakery.(c) A random sample of eleven packages was selected from a machine packaging sugar inpackages marked 500g. The actual weights of salt in kg were:498 502 503 504 495 499 501 498 500 499 503Assuming that the weights are nomally distributed, calculate a 95% confidence intervalfor the mean weight of salt in packages marked 500g.

Mean is the average value around which the whole data set is concentrated. Mathematically, let xi;…

Answered: The mean wage for all 5500 employees…

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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