Suppose you took a survey designed to assess criminal justice students and their attitudes towardsending cash bail in California. You ask 100 students (randomly sampled) how much they'd be willing topay to fund community supervision programs over the current cash bail system. There is anotherquestion that asks students if they believe reforming cash bail is a serious issue.Select all correct answers.The response variable is a student's belief that cash bail needs to be reformed.The reponse variable is the amount of tax a student is willing to pay to cover community supervision costs.Students answer yes or no to the question of whether they believe cash bail reform should occur. This means thesamples are independent.Students answer yes or no to the question of whether they believe cash bail reform should occur. This means thesamples are dependent.

Variables are classified according to their purpose in a research.

Answered: Suppose you took a survey designed to…

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 entertainment sport industry employs athletes, coaches, referees, and related workers. Of these, 37% work part time and 50% earn more than $50,000 annually, and 32% of the employees work full time and earn more than $50,000. Answer the following questions. Be sure to show all necessary justification. What proportion of the industry’s employees are part time and earn more than $50,000? What proportion of the industry’s part time employees earn more than $50,000?
At a single high-end restaurant in England over a 3-week period, there were 141 tables of diners. During the first week, current pop music was played. During the second week, classical music was played. During the third week, no music was played. The results of spending patterns were as follows: Music Mean bill n Classical 24.130 44 2.243 Pop 21.912 49 2.627 None 21.697 48 3.332 Total 22.531 141 2.969 a) By considering the standard deviations, explain why it is appropriate to perform a one-way ANOVA test on this data. b) State the null and alternate hypothesis. c) Perform a one-way ANOVA test by hand. d) Perform a TK Multiple Comparisons Test to determine which means are different with 95% confidence and report your result.
Can you do problem a, b, c?
A problem with polling is whether or not people are willing to answer honestly. If a question might be viewed as shameful or embarrassing (about politics, sexual activity, etc.), they may be reluctant to answer honestly. A potential solution to this is the following: let's suppose that 'YES’ is the embarrassing or socially shameful answer. Give the people you are polling the following instructions: flip a coin privately, and if it comes up heads, you must answer honestly. However, if it comes up tails, you must answer 'YES’ regardless of what the truth is. This gives people л plausible deniability about why they answered yes, if pressed. Again, let p, be the fraction of people who said 'YES'. Let p be the probability that a randomly selected person says YES’. Let q be the probability that a person’s true answer is 'YES’. Note л again, we have that the expected value of p,, is p, but we are actually interested in N measuring q.
Professional athletes are threatening to strike because they claim that they are underpaid. The team owners have released a statement that says, “The average salary for players was $1.2 million last year.” The players counter with their own statement that says, in part, “The average players earned only $750,000 last year.” Is either side necessarily lying? Hearing this on the news, what questions would you ask about these statistics?
2. The student council wants to know what activities would be supported by the student body. Decisions about activities are often made on the basis of survey information. Let's say that a survey was sent out to the student body via emails listed in the school's data base. The survey asked three questions: • Do you support the student council's decision to hold a fund raiser for the food bank? • Do you support the student council's decision to have a school social? • Do you support the student council's decision to offer peer mentoring? Below is a Venn diagram showing the results of the students who responded to the survey. Each circle represents the students who supported that decision. Use the diagram to answer the following questions. For each question show all calculations required and state your conclusion in a complete sentence or short paragraph. STUDENTS WHO RESPONDED TO THE SURVEY Fund Raiser Social 128 35 52 78 43 96 215 Mentoring 3,286 а. How many students responded to the…
Background: Morris Saldov conducted a study in Eastern and Central Newfoundland in 1988 to examine public attitudes towards social spending. In particular, the study tried to determine if knowing someone on public assistance (yes, no) affected one's views on social spending (too little, about right, too much). The data from the study is summarized in the table below. Yes No Total Too little 40 6 46 About right 14 13 27 Too much 9 8 17 Total 63 27 90 Source: Morris Saldov, Public Attitudes to Social Spending in Newfoundland," Canadian Review of Social Policy, 26, November 1990, pages 10-14. Directions: Conduct a chi-square test for independence to determine if the association between knowing someone on public assistance and views on social spending is statistically significant. Choose the correct null and alternative hypotheses. H0: There is no association between knowing someone on public assistance and views on social spending.Ha There is an association between…
Please answer and assist on questions J, K, L Thank you.
Background: Morris Saldov conducted a study in Eastern and Central Newfoundland in 1988 to examine public attitudes towards social spending. In particular, the study tried to determine if knowing someone on public assistance (yes, no) affected one's views on social spending (too little, about right, too much). The data from the study is summarized in the table below. Yes No Total Too little 42 5 47 About right 17 15 32 Too much 9 6 15 Total 68 26 94 Source: Morris Saldov, Public Attitudes to Social Spending in Newfoundland," Canadian Review of Social Policy, 26, November 1990, pages 10-14. Directions: Conduct a chi-square test for independence to determine if the association between knowing someone on public assistance and views on social spending is statistically significant. 1. Choose the correct null and alternative hypotheses. O Ho: There is no association between knowing someone on public assistance and views on social spending. H, There is an association between knowing someone…
Kindly assist with creating bar charts, or pie charts for the below results; Housekeeping respondents were questioned about their observations regarding changes or improvements in gender diversity over recent months or years. All respondents (100%) acknowledged witnessing recent promotions between both genders within Housekeeping and other departments. Similarly, 80% of Guest Services department respondents shared similar observations. Conversely, 75% of respondents from the food and beverage department indicated that they have not observed any changes or improvements in gender diversity, particularly within their own department.
If 61% of Americans believe most school textbooks favor political correctness over accuracy, how many Americans in a group of 50 would you expect to believe this?
3. A Bloomberg Businessweek North American subscriber study collected data from a sample of 2861 sub-scribers. Fifty- nine percent of the respondents indicated an annual income of $ 75,000 or more, and 50% reported having an American Express credit card. a. What is the population of interest in this study? b. Is annual income a categorical or quantitative variable? c. Is ownership of an American Express card a categorical or quantitative variable? d. Does this study involve cross- sectional or time series data? e. Describe any statistical inferences Bloomberg Businessweek might make on the basis of the survey. 4. Table 1.8 shows a data set containing information for 25 of the shadow stocks tracked by the American Association of Individual Investors. Shadow stocks are common stocks of smaller companies that are not closely followed by Wall Street analysts. The data set is also on the website that accompanies the text in the file named Shadow02. a. How many variables are in the data set?…

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