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1. A recent article in a magazine reported that a job awaits only one in three new college graduates. The major reasons given were an overabundance of college graduates and a weak economy. A survey of 200 recent graduates revealed that 80 students had jobs. At the 0.02 significance level, can we conclude that a larger proportion of students have jobs?

1. A recent article in a magazine reported that a job awaits only one in three new college graduates. The major reasons given were an overabundance of college graduates and a weak economy. A survey of 200 recent graduates revealed that 80 students had jobs. At the 0.02 significance level, can we conclude that a larger proportion of students have jobs?

MATLAB: An Introduction with Applications
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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[Statistics] How do you solve this?

a) State the null hypothesis and the alternative hypothesis. Find the test statistic.
b) What is the p-value?
c) Provide your conclusion in the context of this problem. Use alpha = 0.02.
d) Regardless of the answer you provided above, find a 95% confidence interval. Give
Lower and Upper confidence limits, explicitly.
e) What assumptions are needed for these methods?

1. A recent article in a magazine reported that a job awaits only one in three new college graduates. The major reasons given were an overabundance of college graduates and a weak economy. A survey of 200 recent graduates revealed that 80 students had jobs. At the 0.02 significance level, can we conclude that a larger proportion of students have jobs?
Transcribed Image Text:1. A recent article in a magazine reported that a job awaits only one in three new college graduates. The major reasons given were an overabundance of college graduates and a weak economy. A survey of 200 recent graduates revealed that 80 students had jobs. At the 0.02 significance level, can we conclude that a larger proportion of students have jobs?
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