The work week for adults in the US that work full time is normally distributed with a mean of 47 hours. A newly hired engineer at a start-up company believes that employees at start-up companies work more on average than most working adults in the US. She asks 12 engineering friends at start-ups for the lengths in hours of their work week. Their responses are shown in the table below. Test the claim using a 1% level of significance. Give the answer to at least 4 decimal places.**Hours:**- 49- 45- 60- 54- 47- 62- 53- 53- 48- 50- 55- 52**What are the correct hypotheses?**- $ H_0: $ [Select an answer] [ ? ] [ ] hours- $ H_1: $ [Select an answer] [ ? ] [ ] hours**Based on the hypotheses, find the following:**- Test Statistic = [ ]- p-value = [ ]**The correct decision is to** [Select an answer] **.****The correct summary would be:** [Select an answer] that the mean number of hours of all employees at start-up companies work more than the US mean of 47 hours.

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Answered: The work week for adults in the US that…

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 a city with three high schools, all the ninth graders took a Standardized Test, with these results: Number of ninth graders High School Mean score on test Glenwood Central City Lincoln High 81 92 72 273 333 159 The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was 81.7. Of course, that is incorrect. What is the mean score for all ninth graders in the city? Round to one decimal place. mean of all ninth grader's scores =

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