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(a.) Find the point estimate for the mean and standard deviation of the salaries of all the executive secretaries (b.) What is the proportion of executive secretaries with salaries above Php. 9,000.00?

(a.) Find the point estimate for the mean and standard deviation of the salaries of all the executive secretaries (b.) What is the proportion of executive secretaries with salaries above Php. 9,000.00?

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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1. The following salaries (in pesos) were obtained from a sample of 12 executive secretaries: 7,500 13,000 10,300 7,600 10,600 8,350 8,400 5,800 6,300 9,200 7,500 9,466 (a.) Find the point estimate for the mean and standard deviation of the salaries of all the executive secretaries (b.) What is the proportion of executive secretaries with salaries above Php. 9,000.00? 2. Mr. Santiago's company sells bottled coconut juice. He claims that a bottle contains 500 ml of such juice. You wanted to know if his claim is true. They took 6 random samples of 10 bottles. Sample 1 500 498 497 503 499 497 497 | 497 497 495 Sample 2 500 500 | 495 494 498 500 500 500 500 497 Sample 3 497 497 502 496 497 497 497 497 497 495 Sample 4 495 500 497 497 500 500 495 497 497 501 Sample 5 497 497 499 496 |497 497 499 500 500 502 Sample 6 496 495 | 497 497 500 500 496 497 496 497 Based on the point estimate, would you say that the claim is true?
Transcribed Image Text:1. The following salaries (in pesos) were obtained from a sample of 12 executive secretaries: 7,500 13,000 10,300 7,600 10,600 8,350 8,400 5,800 6,300 9,200 7,500 9,466 (a.) Find the point estimate for the mean and standard deviation of the salaries of all the executive secretaries (b.) What is the proportion of executive secretaries with salaries above Php. 9,000.00? 2. Mr. Santiago's company sells bottled coconut juice. He claims that a bottle contains 500 ml of such juice. You wanted to know if his claim is true. They took 6 random samples of 10 bottles. Sample 1 500 498 497 503 499 497 497 | 497 497 495 Sample 2 500 500 | 495 494 498 500 500 500 500 497 Sample 3 497 497 502 496 497 497 497 497 497 495 Sample 4 495 500 497 497 500 500 495 497 497 501 Sample 5 497 497 499 496 |497 497 499 500 500 502 Sample 6 496 495 | 497 497 500 500 496 497 496 497 Based on the point estimate, would you say that the claim is true?
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