Step 1. Test Set-upThe Dean of Students at Nunya Business College claims that by the time of graduation, 95percent of graduating seniors have accepted offers for full-time salaried jobs in their area ofstudy. The leaders of student government think this is an exaggeration. They take a randomsample of 81 students. Seventy-three of them had accepted a job just before graduation.You have been asked to determine whether the student survey provides sufficient evidencethat fewer than 95 percent of graduating seniors have accepted jobs prior tograduatingWhat test statistic should you use?Step 2. Select the Level of Significance, aYou have decided to use a 5% significance level.Step 3. State the null hypothesis (Ho) and alternate hypothesis (H2)Họ:Step 4. Compose the Decision RuleStep 5. Calculate the Value of the Test Statistic, p-value, Effect Size, and Power

This question aims to determine whether the survey data collected by the student government at the…

Answered: Step 1. Test Set-up The Dean of…

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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Justice in the Courts? In an issue of Parade Magazine, the editors reported on a national survey on law and order. One question asked of the 2512 U.S. adults who took part was whether they believed that juries “almost always” convict the guilty and free the innocent. Only 578 said that they did. At the 5% significance level, do the data provide sufficient evidence to conclude that less than one in four Americans believe that juries “almost always” convict the guilty and free the innocent?
In order to estimate the proportion of students at a small liberal arts college who watch reality TV for more than 4 hours per week, a random sample of students at the school is selected and each is interviewed about his or her reality TV viewing habits. The students conducting the survey are worried that people that watch reality TV might be embarrassed to admit it and that they may not respond to the survey with honest answers. What type of bias are the students conducting the survey worried about? Measurement or response bias They shouldn't worry--there is no obvious source of bias. Selection bias Nonresponse bias
Crime incidents by quarantine violators. On June 10, 2020, CNN Philippines reported that the Philippine National Police (PNP) said that incidents of crime had decreased sharply during the country’s community quarantine, which lasted for 84 days. Concurrently, the Joint Task Force COVID Shield reported that a total of 193,779 quarantine violators had been warned, fined, or arrested. About 65.05% of them were from Luzon. Consider a random sample of 500 quarantine violators. a. Compute m and s for the random variable x, the num- ber of quarantine violators who are from Luzon. b. From the sample of 500 quarantine violators, is it likely that less than half are not from Luzon? Explain.
A political scientist claims that 38% of first-year college students characterize themselves as being “moderate” or “middle of the road” as far as their political affiliation is concerned. Believing this claimed value is too high, you survey a random sample of 400 first-year college students and find that 120 characterize themselves as being “moderate” or “middle of the road.” Based on this information, what will the test statistic be? Choose the answer below that is closest to what you calculate, and try not to do a lot of rounding until you get to the very end of your calculations. 1. -0.3 2. -1.2 3. -2.6 4. -3.3 5. None of the other answer options are correct because the test statistic should be positive, not negative.
Question 3. A researcher wished to gauge public opinion on gun control. He randomly selected 1000 people from the list of registered voters and asked them the following question: Do you believe that gun control laws which restricts the ability of Ghanaians to protect their families should be eliminated? i. Identify the two instances of inappropriate use of statistics in the approach used by the researcher. ii. Suggest a remedy for improving the approach used by the researcher.
Sierra College students enrolled in an online Elementary Statistics course were asked to participate in an anonymous onlne survey. The survey asked the students "Which type of device will you primarily use to access your online course in Canvas?". Of the 152 students who answered this question, 20 responded "a desktop computer", 121 responded "a laptop computer", 6 responded "a smartphone", and 5 responded "a tablet". The Sierra College Mathematics Department believes that less than 5% of students enrolled in an online Elementary Statistics course primarily uses a smartphone to access their online course in Canvas. Use the data collected in the survey to conduct a hypothesis testing procedure to test this belief. What conclusion should be reached according to the results of this hypothesis test?
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I am asking for help on the second question: "Identify whether each of the following..." and the first two bullet point that follow it starting with "Researchers are studying..." and ending with "A study tracks the long-term..."

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