Imagine that the incidence of gun violence is compared in two cities, one with relaxed gun laws (A), the other with strict gun laws (B). In the city with relaxed gun laws, there were 50 shootings in a population of 100,000 and in the other city, 10 shootings in a population of 100,000. Show contingency table and MedCalc results.  What is the relative risk of gun violence in the city with relaxed gun laws (A)?  What is the relative risk of gun violence in the city with strict gun laws (B)?  What questions need to be asked before concluding that there is an association between shootings and gun laws?

Q: A warden is motivated to reduce to aggressive interactions between inmates that sometimes occur in…

A: Given information: The data represents the values of the variables Aggression and Hobby time.

Q: A doctor wanted to study the effect of four different treatments on mental health. A group of 100…

A: Solution Given table is the contingency table between two categorical variable.

Q: A study was conducted to study the association of coffee drinking and anxiety in a sample of adults.…

A: Given: Out of 12500 coffee drinkers, 700 developed anxiety. Out of 16500 coffee drinkers, 250…

Q: What is the impact of independent variables (income, types of degrees, quality of education) on…

A: Consider the independent variable Income:   There exists a positive relation between income and…

Q: Suppose researchers conduct an analysis addressing the relationship between cigarette smoking and…

A:

Q: The patient was 62 years old. B) The patient did not visit the emergency room. C) The patient was…

A: DISJOINT EVENTS Two events A and B are said to be disjoint, if it is impossible for both of them to…

Q: Prof. Juan believes that one of the greatest challenges of remote teaching is ensuring that students…

A: Sample = 50 56%(28 out of 50)are able to carry out their own study plan. We have to answer for fill…

Q: According to the Internal Revenue Service (IRS), the taxpayer's adjusted gross income determines the…

A: It is a simple linear regression based question

Q: Marilyn Monroe is studying the effects of smoking. To do so, she exposes 96 mice to the scaled…

A: Population: The set of all people, items, or objects that are required for a specific study is…

Q: List three ways to visualize one variable categorical data

A: Here define three ways to visualize one variable categorical data

Q: You work at an alcohol and substance abuse center and run a youth program. You want to determine…

A: ANOVA: In one factor ANOVA model only one factor is studied, that is only the effect on one factor…

Q: 13) School 1 claims that it is a much better school than School 2. As the reason, School 1 refers to…

A: Value claims are argumentive statements concerning pros and cons on something that is subjective to…

Q: A study was conducted to determine if a person's resting heartbeat (how many beats per minute) was…

A: The observed data is   Exercises Regularly Does not Exercises Regularly Total Above 70 BPM 18…

Q: Suppose we want to estimate the annual high temperatures of the hottest major cities in the United…

A: Given data Here we have two variables City and Temperature City is a Categorical variable. Under…

Q: on the results of the relative risk and odds ratio in the last dataset, what can be said about the…

A: Without seeing the actual results of the relative risk and odds ratio calculations, it is not…

Q: n a cohort study, the risk ratio of developing diabetes was close to 1 when comparing consumers of…

A:

Q: Why is it important to determine whether two variables are related before causality is determined?

A: Correlation is when two factors (or variables) are related, but one does not necessarily cause the…

Q: The data below shows the salaries, in thousands of dollars, of employees at the same business.…

A: Sampling is a way of selecting data from a population.

Q: oretical framework from engineering sciences, the researcher believes that the physical set up of…

A: No of people involved as participants for data analysis 6 physicians 10 nurses   Nursing…

Q: A warden is motivated to reduce to aggressive interactions between inmates that sometimes occur in…

A: Given information: The data represents the values of the variables Aggression and Hobby time.

Q: Professor Gatis Skride is hired by the Weightlifting Federation of Jeekabpils to study the body…

A: Given Information:  The mean weight is 219.05 pounds The median weight is 219 pounds The mode weight…

Q: he issue/scenario: A bio-tech firm has provided you with 1 years’ worth of sales for a sample of 45…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: The issue/scenario: A bio-tech firm has provided you with 1 years’ worth of sales for a sample of 45…

A: From the given information, there are two groups in Engineer category, 'No' and 'Yes'. The…

Q: Airbnb is an online marketplace used by many travelers when booking lodging all over the world.  The…

A: We would like to study the relationship between number of reviews (counts) and price (in dollars)…

Q: A universal childcare program was introduced in London in the early 2000s. Comparing the years…

A: The statistical hypothesis is a statement about the nature of a population. It is often stated in…

Q: A disease can be caused by three strains of a virus. Suppose that Type A is statistically the most…

A: Given Information: Type A is causes 85% of all cases. Type B causes 12% of cases.  Type C causes the…

Q: their cavalry regiments over a 20-year time span. If these fatalities occurred independently and…

A: Given that : The number of fatalities caused by horse kicks to members of 10 of their cavalary…

Q: How to draw a boxplot with the same quartile 2 and quartile 3?

A: Boxplot is a graphical representation that indicates the five-number summary of data. The…

Q: If the errors produced by a forecasting method for 3 observations are +3, +3, and −3, then what is…

A:

Q: Part 1) A researcher is going to conduct a survey about changes in drug offense sentencing.  Assume…

A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…

Q: We take another look at the confidence in the executive branch of the federal government (CONFED) is…

A: Given information: The two independent variables that are included in executive branch of federal…

Q: 8. Does When Food Is Eaten Affect Weight Gain?A study was introduced that examined the effect of…

A: Part (a): Correlation coefficient: From the given output, The correlation coefficient for BMGain and…

Q: Calie has just been named the director of alumni relationships at a local university. Alumni…

A: Given information: The data represents the values of specified characteristics of top 123 colleges…

Q: Burning fuels in power plants and motor vehicles emits carbon dioxide (CO2), which contributes to…

A: Given data : Country CO2 Emissions (Metric tons per capita) Aruba 32.92 Andorra 5.97…

Q: What is the best measure of central tendency for 2 nominal level variables and why?

A: Nominal scales are used, without any quantitative significance, to label variables. One might…

Q: What is the shape of this data analysis?

A: Given data:

Q: 3. *The three major levels/lenses of OB (nature of OB) are: 4. *Name 3 topics the individual level.…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Helena gathers data about the music preferences of users of a social media application. She gathers…

A: Part A: To simulate the outcome of several trials, we can use Python and generate random numbers…

Q: 1. In a research project on the influence of music on retail shopping expenditure, a researcher…

A: Hi! Thank you for the question As per the honour code, We’ll answer the first question since the…