Lab #17-Hypothesis, p-values, and alpha levels For problems 1-4, write the null and alternative hypotheses you would use to test each. A governor is concerned about his "negatives"-the percentage of state residents who express disapproval of his job performance. His political committee pays for a series of TV ads, hoping that they can keep the negatives below 30%. They will use follow-up polling to assess the ads, effectiveness 1. Ho: Ha: 2. Is a coin fair? Ho: Ha: Only about 20% of people who try to quit smoking succeed. Sellers of a motivational tape claim that listening to the recorded messages can help people quit. 3. Ho: Ha: In the 1950s only about 40% of high school graduates went on to college. Has the percentage changed? 4. Ho: Ha:
Lab #17-Hypothesis, p-values, and alpha levels For problems 1-4, write the null and alternative hypotheses you would use to test each. A governor is concerned about his "negatives"-the percentage of state residents who express disapproval of his job performance. His political committee pays for a series of TV ads, hoping that they can keep the negatives below 30%. They will use follow-up polling to assess the ads, effectiveness 1. Ho: Ha: 2. Is a coin fair? Ho: Ha: Only about 20% of people who try to quit smoking succeed. Sellers of a motivational tape claim that listening to the recorded messages can help people quit. 3. Ho: Ha: In the 1950s only about 40% of high school graduates went on to college. Has the percentage changed? 4. Ho: Ha:
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:Lab #17-Hypothesis, p-values, and alpha levels
For problems 1-4, write the null and alternative hypotheses you would use to test each.
A governor is concerned about his "negatives"-the percentage of state residents who express
disapproval of his job performance. His political committee pays for a series of TV ads, hoping
that they can keep the negatives below 30%. They will use follow-up polling to assess the ads,
effectiveness
1.
Ho:
Ha:
2.
Is a coin fair?
Ho:
Ha:
Only about 20% of people who try to quit smoking succeed. Sellers of a motivational tape claim
that listening to the recorded messages can help people quit.
3.
Ho:
Ha:
In the 1950s only about 40% of high school graduates went on to college. Has the percentage
changed?
4.
Ho:
Ha:
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