2. A researcher claims that the average salary of an engineer in the Philippines is more than P50,700. A sample of 60 engineers was selected and found that their mean salary is P41,000 with a standard deviation of P5,000. Is there sufficient evidence to support the claim of the researcher at 0.05 level of significance? Ho: Ha:

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Answer 2, 3, and 4
A. Formulate the null and alternative hypothesis of the following statements.
1. The Department wants to know if the average working hours in preparing a full meal is 3
hours.
Ho:
На:
2. A researcher claims that the average salary of an engineer in the Philippines is
more than P50,700. A sample of 60 engineers was selected and found that their
mean salary is P41,000 with a standard deviation of P5,000. Is there sufficient
evidence to support the claim of the researcher at 0.05 level of significance?
Ho:
На:
3. The registrar wants to know if the average encoding period of time in the school automate
is 30 minutes.
Но:
На:
4. Does the data suggest that the population mean dosage of this brand is different
than 50 mg?
Ho:
На:
Transcribed Image Text:A. Formulate the null and alternative hypothesis of the following statements. 1. The Department wants to know if the average working hours in preparing a full meal is 3 hours. Ho: На: 2. A researcher claims that the average salary of an engineer in the Philippines is more than P50,700. A sample of 60 engineers was selected and found that their mean salary is P41,000 with a standard deviation of P5,000. Is there sufficient evidence to support the claim of the researcher at 0.05 level of significance? Ho: На: 3. The registrar wants to know if the average encoding period of time in the school automate is 30 minutes. Но: На: 4. Does the data suggest that the population mean dosage of this brand is different than 50 mg? Ho: На:
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