1. An economist claims that the mean family income of a certain populated area in Metro Manila is 22450php monthly. Test the claim at a 0.05 level of significance. The economics students take a sample of 150 families obtaining a mean of 19769php with a standard deviation of 529php. What is the conclusion?
1. An economist claims that the mean family income of a certain populated area in Metro Manila is 22450php monthly. Test the claim at a 0.05 level of significance. The economics students take a sample of 150 families obtaining a mean of 19769php with a standard deviation of 529php. What is the conclusion?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Transcribed Image Text:Applied Stat. Hypo Testing.
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1 12 11 10 I-I18.111 6.1
41112.110. 1112-1114:11.
110 I12
Hypothesis Testing Procedures
1. Formulate the Null and Alternative Hypothesis
2. Decide the level of significance
3. Choose the appropriate test statistics
4. Establish the critical region
5. Compute the value of the statistical test
6. Decide whether to accept or reject the null
hypothesis
7. Draw a conclusion
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Transcribed Image Text:1. An economist claims that the mean family income of a certain populated area in Metro Manila is 22450php
monthly. Test the claim at a 0.05 level of significance. The economics students take a sample of 150 families
obtaining a mean of 19769php with a standard deviation of 529php. What is the conclusion?
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