**Title: Statistical Analysis of Work Hours in Start-up Companies****Introduction:**The standard work week for full-time adults in the United States is normally distributed with a mean of 47 hours. A newly hired engineer at a start-up company proposes that employees at start-up companies tend to work more hours than the average full-time adult in the US. To investigate this, she collects data from 12 engineering friends working at various start-ups, asking for the lengths of their work weeks in hours.**Data Collection:**The recorded work hours are as follows:| Hours ||-------|| 49 || 50 || 52 || 51 || 46 || 61 || 45 || 45 || 50 || 50 || 51 || 55 |**Objective:**The objective is to test the claim that start-up employees work more hours on average than the general US population of full-time workers. This will be tested using a 5% level of significance.**Methods:**- Conduct a hypothesis test to compare the sample mean to the known population mean.- Use a significance level of 0.05 to determine if the observed sample provides enough evidence to support the claim.- Calculate the sample mean and standard deviation, and perform a t-test for the mean difference.**Conclusion:**The outcome of the hypothesis test will determine whether there is statistical evidence to support the claim that start-up employees work longer hours than the average US full-time worker. (Note: The detailed statistical calculations and analysis should be included in the educational content to guide readers through the process.) **Hypothesis Testing Exercise****What are the correct hypotheses?**- **\( H_0 \):** [Dropdown selection] [Textbox] hours- **\( H_1 \):** [Dropdown selection] [Textbox] hours**Based on the hypotheses, find the following:**- **Test Statistic =** [Textbox]- **p-value =** [Textbox]**The correct decision is to** [Dropdown selection].**The correct summary would be:** [Dropdown selection] that the mean number of hours of all employees at start-up companies work more than the US mean of 47 hours.

Answered: What are the correct hypotheses? Ho:…

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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203 / 234 100% 1. A random sample of Californians has a mean age of 34.4, but you want to know the mean age of all Californians. It like you want to generalize from a a. population; sample; descriptive statistics b. statistic; parameter; sampling error C. central tendency measure; variability measure; random selection d. sample; population; operational definitions to a and therefore you need to worry about 2. Which one sounds like an example of the experimental method? Looking for a relationship between education and income by doing a survey asking about both education and inc Researching whether aggression and violent media consumption are related by asking kids about their violent me consumption and asking their teachers about their aggression Putting people in three different temperature rooms to see if temperature affects productivity a. b. с. d. None of the above 3. What is the value of E(X2 + 2) for the following scores? Scores: 7, 10, 12, 5, 8, 9, 5, 6 a. 624 b. 526 C. 540 d.…
17
please answer a, b, c
I need help solving a) I tried 21.2, 21.9, and they were both incorrect. Please explain step by step.
Two possible p-values are given. Which one provides the strongest evidence against H0? p -value=0.5 p-value=0.06
Can you please help me with D thank you!
Which of the following is an accurate definition for the power of a statistic test?
A small hospital wants to create a more welcoming environment for patients with mental illnesses--starting with employee training. As part of a pre-training assessment, employees complete a 10-point Attitudes Toward Mental Illness scale (higher = more positive attitudes). The pre-training data are: 4, 10, 2, 7, 7, 6, 6 Make a Frequency Table 1 Make a Frequency Histogram 2 Find the mean, median & mode 3 Calculate the SD What are the (pre-training) employee attitudes toward mental illness like?
In a measurement of B two results were obtained, B1 = (8.3+/- 0.78) mT and B2 = (8.81+/- 0.20) mT . The error on the weighted/arithmetic mean is (Report your answer in mT with 3 significant figures)
What are the population parameters? Pick one: The difference in the sample sizes The difference in the two sample means The mean time spent for all test-takers before and after tutoring The mean time spent for all test-takers before and after tutoring combined Does sufficient or insufficient evidence exist?
Hi team, Please provide the answer for the 4 parts of the question, thanks in advance. The last senence says : (please pick the correct lines) "(Fail to reject / Reject ) H0 . There is (Sufficient / Not sufficient) evidence to conclude that the mean lead concentration for all such medicines is (Not / Equal to / Greater than / Less than ) 18 μg/g."
z Scores LeBron James, one of the most successful basketball players of all time, has a height of 6 feet 8 inches, or 203 cm. Based on statistics from Data Set 1 “Body Data” in Appendix B, his height converts to the z score of 4.07. How many standard deviations is his height above the mean?

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