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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
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Applied Stat. Hypo Testing. Sign in O X File Home Insert Desigr Transit Anima Slide S Recore Reviev View Help O Tell me & Share E - IIA BIUS abe AV 三 Paste Slides Drawing Editing A - Aa - A A = Clipboard Font Paragraph 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 Click to add notes Slide 6 of 8 Notes Comments Thumbnails
Transcribed Image Text:Applied Stat. Hypo Testing. Sign in O X File Home Insert Desigr Transit Anima Slide S Recore Reviev View Help O Tell me & Share E - IIA BIUS abe AV 三 Paste Slides Drawing Editing A - Aa - A A = Clipboard Font Paragraph 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 Click to add notes Slide 6 of 8 Notes Comments Thumbnails
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?
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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