A random sample of 800 adults was asked: “Do you believe current sentencing laws for non-violent crimes are too lenient, too strict, or just right?” The polling company compiled the data and separated the respondents by their education level. Is there evidence that opinion about sentencing laws for non-violent crimes is related to education level? Write appropriate hypotheses and check conditions.   Suppose the expected counts had not been given. Show how to calculate the expected count in the first cell (106.01).   How many degrees of freedom?   State your complete conclusion in context.

Q: A 2016 Pew Research poll found that 18% of cell phone owners use their phone for conducting…

A: It is given that the total number of cell phone uses are 18%, thus the population proportion is…

Q: State the null and alternative hypotheses. (Enter != for # as needed.) Ho H₂ Find the value of the…

A:

Q: A research study wishes to examine if there is a relationship between type of exercise (marathon,…

A: Steps to Determine the Critical Value:1. **Set up the Hypotheses:**  - **Null Hypothesis (H0):**…

Q: Present a contingency table and analyze using the proper statistics. Discuss your findings.

A: The two categorical variables given are promotion and retired status,Given that,No. of employees…

Q: In 2014, the Pew Research Centers American Trends Panel sought to better understand what Americans…

A: Solution: Let X be the number of adults correctly interpret a scatterplot and n be the sample number…

Q: In 2005, Health Canada claimed that 16.8% of Canadian adults are obese. A researcher wanted to check…

A: Given, The sample proportion is,

Q: If a hurricane was headed your way, would you evacuate? The headline of a press release states,…

A: Sample size = n = 4625 Sample proportion = p̂ = 0.32

Q: A random sample of 800 adults was asked: “Do you believe current sentencing laws for non-violent…

A: Since you have posted multiple sub-parts, we will solve the first three sub-parts for you. To get…

Q: polling organization conducted telephone surveys in March of 2004, 2005 and 2006. In each year, 1001…

A: Given: Level of significance = 0.05 Observed frequency table:   2004 2005 2006 Total…

Q: Approximately 20.5% of the U.S. population 5 years old and older speaks a language other than…

A: sample size is 400 & Population Proportion =0.205

Q: A company executive claims that employees in his industry get 100 junk emails per day. To further…

A: Given Information: Consider the given dataset: 125, 101, 109, 94, 122, 92, 119, 90, 118, 122. The…

Q: The U.S. Department of Transportation, National Highway Traffic Safety Administration, reported that…

A: From the provided information, Sample size (n) = 54 Out of which 35 involved an intoxicated driver.…

Q: score A credit score is used by credit agencies (such as mortgage companies and banks) to assess the…

A: Given:Mean(x)=716.2Standard deviation(s)=81.1Sample size(n)=34α=0.05

Q: Health insurance benefits vary by the size of the company (the Henry J. Kaiser Family Foundation…

A: a:For the given data, the chi-square test for association is appropriate.Null Hypothesis:H0: The…

Q: In a survey conducted by a website, employers were asked if they had ever sent an employee home…

A: Sample size, n=2765 Number of successes, x=964

Q: D. Construct a 95% confidence interval estimate of the proportion of adults believing that immediate…

A: It is given that  Favourable cases, X = 975 Sample size, n = 1762

Q: The General Social Survey is an annual survey given to a random selection of about 1500 adults in…

A: The objective is to test whether or not there are differences in the typical work week length based…

Q: abulated below: Males Females American Football more iolent ce hockey more iolent 434 361 466 439

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Q: Omar is a human resources executive for a technology company. He is deciding between two types of…

A: a) Let 'μ1' represent the population mean of the yearly number of vacation days taken by workers…

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A: Note: Hi, thank you for the question. As per our company guideline we are supposed to answer only…

Q: A polling organization conducted telephone surveys in March of 2004, 2005 and 2006. In each year,…

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A: Denote p2009 and p2004 as the true population proportions of spam emails deleted by Americans in…

Q: An article published in the “American Journal of Public Health” describes the results of a health…

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Q: In June 2012 the Gallup organization conducted a pollusing a random sample of 1004 adults, aged 18…

A: From the given information, we have confidence Interval is 95%  Sampling error is 4 percentage…

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Q: sample of n = 80 C of I students found 16 with brown eyes. Give the numerical value of the statistic…

A: Sample size n=80Favorable cases=16

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A: Given that ; u = 700.4 Sample mean = 716.2 n = 34  s = 81.1 Here we use one sample mean test to…

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A: The objective is to determine that there is evidence that the proportion falling in the three credit…

Q: What is the conclusion? A recent survey done by the Philippine Housing Authority found that 35% of…

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Q: who live within 20 miles of the coast in high hurricane risk counties of eight southern states. In…

A: It is given that sample size (n) is 4,625 and p hat value is 1-0.32 = 0.68.

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Q: Anterior cruciate ligament (ACL) injuries occur most frequently in planting and cutting sports such…

A: Independent samples: Two samples are said to be independent of each other when values of one sample…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.