The work week for adults in the US that work full time is normally distributed with a mean of 47 hours. Anewly hired engineer at a start-up company believes that employees at start-up companies work more onaverage then most working adults in the US. She asks 12 engineering friends at start-ups for the lengths inhours of their work week. Their responses are shown in the table below. Test the claim using a 10% level ofsignificance.Hours504450534862585545495451What are the correct hypotheses?Ho: Select an answerv ?hoursHa: Select an answerv ?VhoursBased on the hypotheses, find the following:Test Statistic=(Give answer to at least 4 decimal places.)p-value=(Give answer to at least 4 decimal places).The correct decision is to Select an answerThe correct summary would be: Select an answerof hours of all employees at start-up companies work more than the US mean of 47 hours.v that the mean number

We have given that Sample size n = 12 Population mean μ = 47

Answered: hat wor time is normally distributed…

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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In 2014, approximately 2% of hourly rate workers were being paid at the federal minimum wage level. Would federal legislation to increase the minimum wage have a greater effect on the mean or the median income of all workers? O Mean OMedian
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Ims.uop.edu.jo/moodle Question 3 Much of the money in private colleges and universities is invested in a fund called an endowment. A recent survey of eight private colleges in the United States revealed the following endowments (in millions Not yet answered Marked out of 2.00 of dollars): 88, 55, 249, 495, 114, 189, 98 and 220. What value will be Flag question used as the point estimate for the mean endowment of all private colleges in the United States? Select one: O 180.21 O 188.5 O 200.5 O151.115
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A study was conducted to examine the impact of speaking in public on college students. A class of 15 statistics students participated in the study. At the beginning of a lecture the students recorded their systolic blood pressure. During the lecture the instructor called on each student to stand and answer questions about topics in the lecture. After speaking the students once again recorded their blood pressure. The resulting values are given below along with summary statistics. before 100 123 128 125 136 108 130 113 105 136 146 138 108 149 132 after 141 142 146 136 144 111 132 114 103 133 140 130 100 133 113 difference -41 -19 -18 -11 -8 -3 -2 -1 2 3 6 8 8 16 19 before after difference mean 125.1 127.9 -2.733 st dev 15.26 15.45 15.23 Does this information indicate that blood pressure increased because of speaking? Conduct an appropriate hypothesis test and show appropriate steps. Let μ1 mean systolic blood pressure before speaking in public, and μ2 mean…

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