1. Is there a relationship between marital status and happiness? In the 2006 General SocialSurvey, 2985 randomly sampled individuals were asked their level of happiness and maritalstatus. The results are shown in the below Table. Does the sample evidence suggest thatone's happiness depends on one's marital status? Conduct an hypothesis test to answer thisquestion. Use 0.05 level of significance. Write down all necessary steps of the test such ashypotheses, test statistic, P-value, decision, and the conclusion.Marital StatusDivorced/Separated NeverMarriedMarriedWidowedVery HappyHappiness PrettyНаррyNot tooНарру600631121447201423554599351119127

Given: Marital status Married Widowed Divorced Never married Very happy 600 63 112 144…

Answered: 1. Is there a relationship between…

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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A psychologist wants to demonstrate the effectiveness of ACT therapy for the treatment of depression. 30 people who were seeking treatment for depression asked to complete the Beck depression inventory (BDI) before the first sessionof therapy and again after one month of therapy. Which statistical test would be best to determine if there is a significant difference between measures? One sample t-test Dependent samples t-test Independent samples t- test ANOVA
Does having a non-significant P-value means that the means of the sample will be the same? explain
Portland State University (PSU) reported that 64% of their students receive financial aid. A PSU administrator feels that their school may have a different proportion compared to all of Oregon schools. A random sample of 409 students in Oregon found that 259 receive financial aid. Test the claim that proportion of students that receive financial aid in Oregon is different than PSU. Use a 1% significance level. Give answer to at least 4 decimal places. a. What are the correct hypotheses? (Select the correct symbols and use decimal values not percentages.) Ho: Select an answer ?v H₁: Select an answer ? ✓ Based on the hypotheses, compute the following: b. Test Statistic = c. p-value = d. Based on the above we choose to Select an answer e. The correct summary would be: Select an answer that the proportion of students that receive financial aid in Oregon is different than the PSU reported value of 64%.
Can someone answer g.) h.) and i.) please?
Use the information below, gathered from 1000 students from a small college who disclosed their age as well as their preference for type of instruction, to determine whether or not there is an association between age and preferred type of instruction. Write your hypotheses, perform the test, find the test statistic, the p-value, and state your conclusion. Assume a significance level of � = 0.01. AGE 18 & under 19-25 26-35 36-45 65 or Older online 43 56 26 20 20 Scheduled Zoom 48 75 34 26 20 Hybrid Zoom 82 19 88 83 59 Face to Face 27 50 52 71 101 a) Write your hypotheses.b) Use your calculator to determine the test statistic and p-value.c) Using the significance level provided, write an appropriate conclusion
We predict that children exhibit more aggressive act after watching a violent television show. The scores for ten children were recorded before they watched a violent show and then after they watched a violent show. Aggression was measured in terms of number of aggressive acts (e.g. hitting, yelling, kicking etc). Sample 1 (after TV show): 5,6,4,4,7,3,2,1,4,1 Sample 2 (before TV show): 4,6,3,2,4,1,0,0,5,2 What is the critical value?
a researcher uses an anonymous survey to investigate the television-viewing habits of 100 American adolescents. he plans to make infrence about tv habits and the american based survery the entire group of american adolescents is an example of? sample, population, parameter, and statistic?
Explain the difference between a one-tailed and two-tailed significance test. When is it appropriate to use each test?
please help me find the test statistic and p-value!
Random digit dialing telephone surveys used to exclude cell phone numbers. If the opinions of people who have only cell phones differ from those of people who have landline service, the poll results may not represent the entire adult population. The Pew Research Center interviewed separate random samples of cell-only and landline telephone users who were less than 30 years old. Here’s what the Pew survey found about how these people describe their political party affiliation. What is the chi-square test statistic value? Round to two decimal places.
I need help with this please

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