The manufacturers of Good-O use two different types of machines to fill their 25 kg packs of dried dog food. On the basis of random samples ofsize 12 and 14 from output from machines 1 and 2 respectively, the mean and standard deviation of the weight of the packs of dog food producedwere found to be 24 250 kg and 0.265 kg for machine 1 and 24 649 kg and 0.136 kg for machine 2. Hence, under the usual assumptions,determine a 98% confidence interval for the difference between the average weight of the output produced by machine 1 and by machine 2Construct the interval as the average weight of machine 1 minus machine 2, stating only the lower limit of the interval correct to 3 decimal places

The manufacturers of Good-O use two different types of machines to fill their 25 kg packs of dried…

Answered: The manufacturers of Good-O use two…

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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In a random sample of 29 residents living in major cities on the West Coast (Group 1) and 29 residents living in major cities on the East Coast (Group 2), each individual was asked their age. The results can be seen in the table below. The population standard deviation of the age in West Coast cities is known to be 11.2 years and in East Coast cities is known to be 9.3 years. Assume the populations are normally distributed. Run a test at a 0.05 level of significance to test if west coast cities are, on average, older. West Coast (Group 1) East Coast (Group 2) 25 34 47 45 18 37 38 20 30 19 50 26 52 79 61 46 40 29 22 55 34 23 35 35 55 36 60 51 68 41 20 50 33 32 36 38 37 26 42 44 60 19 71 28 54 27 20 18 45 30 52 20 34 22 57 43 64 62 Enter the P-Value - round to 4 decimal places. Make sure you put…
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