Perform a statistical analysis / test of hypothesis on each of the following problems. The market researcher in a certain company conducted a study to assess the effectiveness of a new computerized system of filling orders. He selected a random sample of 100 customers served using the old system and 100 served using the new system. He contacts each customer to find out whether or not the order was filled satisfactorily within 2 weeks. Results were recorded in the accompanying table:SystemSatisfiedNot SatisfiedTotalOLD6832100NEW8515100Total15347200 Test at alpha equal to 5% the null hypothesis that the proportion of satisfied customers among those served by the new system is the same as that among those served by the old system. Perform a statistical analysis / test of hypothesis on each of the following problems.2. The market researcher in a certain company conducted a study to assess theeffectiveness of a new computerized system of filling orders. He selected a randomsample of 100 customers served using the old system and 100 served using the newsystem. He contacts each customer to find out whether or not the order was filledsatisfactorily within 2 weeks. Results were recorded in the accompanying table:SystemSatisfiedNot SatisfiedTotalOLD6832100NEW8515100Total15347200Test at alpha equal to 5% the null hypothesis that the proportion of satisfied customersamong those served by the new system is the same as that among those served bythe old system. Perform a statistical analysis / test of hypothesis on each of the following problems.2. The market researcher in a certain company conducted a study to assess theeffectiveness of a new computerized system of filling orders. He selected a randomsample of 100 customers served using the old system and 100 served using the newsystem. He contacts each customer to find out whether or not the order was filledsatisfactorily within 2 weeks. Results were recorded in the accompanying table:SystemSatisfiedNot SatisfiedTotalOLD6832100NEW8515100Total15347200Test at alpha equal to 5% the null hypothesis that the proportion of satisfied customersamong those served by the new system is the same as that among those served bythe old system.

Two sample proportion z test: Two sample proportion z test is used to test the significance…

Answered: Perform a statistical analysis / test…

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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Perform a statistical analysis / test of hypothesis on each of the following problems.

The market researcher in a certain company conducted a study to assess the effectiveness of a new computerized system of filling orders. He selected a random sample of 100 customers served using the old system and 100 served using the new system. He contacts each customer to find out whether or not the order was filled satisfactorily within 2 weeks. Results were recorded in the accompanying table:

System	Satisfied	Not Satisfied	Total
OLD	68	32	100
NEW	85	15	100
Total	153	47	200

Test at alpha equal to 5% the null hypothesis that the proportion of satisfied customers among those served by the new system is the same as that among those served by the old system.

Perform a statistical analysis / test of hypothesis on each of the following problems.
2. The market researcher in a certain company conducted a study to assess the
effectiveness of a new computerized system of filling orders. He selected a random
sample of 100 customers served using the old system and 100 served using the new
system. He contacts each customer to find out whether or not the order was filled
satisfactorily within 2 weeks. Results were recorded in the accompanying table:
System
Satisfied
Not Satisfied
Total
OLD
68
32
100
NEW
85
15
100
Total
153
47
200
Test at alpha equal to 5% the null hypothesis that the proportion of satisfied customers
among those served by the new system is the same as that among those served by
the old system.

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