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an work week for engineers in a start-up company is believed to r hopes that it's shorter. She asks 10 engineering friends in start eeks. Their responses are 55; 60; 65; 55; 55; 60; 50; 55 the newly hired engineer testing a mean or a proportion? nean proportion O O me null hypothesis, in symbols, is μ: the test left-tailed, right-tailed, or two-tailed? eft-tailed right-tailed two-tailed

an work week for engineers in a start-up company is believed to r hopes that it's shorter. She asks 10 engineering friends in start eeks. Their responses are 55; 60; 65; 55; 55; 60; 50; 55 the newly hired engineer testing a mean or a proportion? nean proportion O O me null hypothesis, in symbols, is μ: the test left-tailed, right-tailed, or two-tailed? eft-tailed right-tailed two-tailed

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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The mean work week for engineers in a start-up company is believed to be about 56 hours. A newly hired engineer hopes that it's shorter. She asks 10 engineering friends in start-ups for the lengths of their mean work weeks. Their responses are 70; 45; 55; 60; 65; 55; 55; 60; 50; 55 • Is the newly hired engineer testing a mean or a proportion? mean proportion • The null hypothesis, in symbols, is u Is the test left-tailed, right-tailed, two-tailed? left-tailed right-tailed two-tailed
Transcribed Image Text:The mean work week for engineers in a start-up company is believed to be about 56 hours. A newly hired engineer hopes that it's shorter. She asks 10 engineering friends in start-ups for the lengths of their mean work weeks. Their responses are 70; 45; 55; 60; 65; 55; 55; 60; 50; 55 • Is the newly hired engineer testing a mean or a proportion? mean proportion • The null hypothesis, in symbols, is u Is the test left-tailed, right-tailed, two-tailed? left-tailed right-tailed two-tailed
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