You are a student in a health psychology class. You are interested in the average income of an adult inthe U.S. You go out and get a random sample of 30 working adults and you ask them their income.You were able to obtain the following income from 30 working adults:Adult ID123456789101112131415Annual Income$102,757.16$113,785.95$99,867.21$94,223.55$71,937.66$87,974.10$98,194.31$92,170.37$76,638.32$91,326.73$98,973.30$70,547.81$78,084.72$78,690.09$64,754.76Adult ID161718192021222324252627282930Annual Income$88,264.44$76,430.66$98,270.22$93,595.77$95,102.70$105,085.11$71,094.34$98,201.52$74,130.75$86,445.22$71,513.74$87,155.25$77,643.07$75,751.45$90,712.6441. Calculate the standard deviation for the sample using the formula below:Please show me your work. Show your steps. DO NOT ROUND UNTIL THE END.

Answered: You are a student in a health…

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 General Social Survey is an annual survey given to a random selection of about 1500 adults in the United States. Among the many questions asked are "What is the highest level of education you've completed?" and "If you're employed full-time, how many hours do you spend working at your job during a typical week?" We're interested in examining whether or not there are differences in the typical work week length based on the level of education of the worker. We perform a one-way, independent-samples ANOVA test, with the "groups" in the ANOVA being categories of highest educational degree of the worker ("less than high school," "bachelor's degree," etc.) and the variable being the number of hours written down by the worker in answering the survey question. (a)Suppose that the results of our ANOVA are given in the ANOVA table below. Complete the missing cell of the ANOVA table (rounding your answer to two decimal places). Source of variation Degrees of freedom Sum of…
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The General Social Survey is an annual survey given to a random selection of about 1500 adults in the United States. Among the many questions asked are "What is the highest level of education you've completed?" and "If you're employed full-time, how many hours do you spend working at your job during a typical week?" In a recent year, 1079 respondents answered both questions. The summary statistics are given in the chart below. (The sample data consist of the times, in hours per week, that were given by the respondents.) Sample Sample Sample size Groups mean variance Less than h.s. High school Bachelor's 258 40.9 101.8 263 41.8 97.5 270 42.2 94.4 Graduate 288 43.0 98.7 Send data to calculator Send data to Excel To decide if there are any differences in the mean hours per week worked by these different groups, we can perform a one-way, independent-samples ANOVA test. Such a test uses the following statistic. Variation between the samples F= Variation within the samples For the data from…
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