1. Formulate the null and the alternative hypothesis. a) A city had an unemployment rate of 7%. The mayor pledged to lower this figure and supported programs to decrease unemployment. A group of citizens wanted to test if the unemployment rate had actually decreased, so they obtained a random sample of citizens to see what proportion of the sample was unemployed. b) A restaurant owner installed a new automated drink machine. The machine is designed to dispense 530 mL of liquid on the medium size setting. The owner suspects that the machine may be dispensing too much in medium drinks. They decide to take a sample of 30 medium drinks to see the average amount is significantly greater than 530 mL.
1. Formulate the null and the alternative hypothesis. a) A city had an unemployment rate of 7%. The mayor pledged to lower this figure and supported programs to decrease unemployment. A group of citizens wanted to test if the unemployment rate had actually decreased, so they obtained a random sample of citizens to see what proportion of the sample was unemployed. b) A restaurant owner installed a new automated drink machine. The machine is designed to dispense 530 mL of liquid on the medium size setting. The owner suspects that the machine may be dispensing too much in medium drinks. They decide to take a sample of 30 medium drinks to see the average amount is significantly greater than 530 mL.
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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Transcribed Image Text:1. Formulate the null and the alternative hypothesis.
a) A city had an unemployment rate of 7%. The mayor pledged to lower this
figure and supported programs to decrease unemployment. A group of
citizens wanted to test if the unemployment rate had actually decreased, so
they obtained a random sample of citizens to see what proportion of the
sample was unemployed.
b) A restaurant owner installed a new automated drink machine. The machine
is designed to dispense 530 mL of liquid on the medium size setting. The
owner suspects that the machine may be dispensing too much in medium
drinks. They decide to take a sample of 30 medium drinks to see the average
amount is significantly greater than 530 mL.
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