The incidence of disease X is 56/1,000 per year among smokers and 33/1,000 per year among nonsmokers. What proportion of cases of disease X are due to smoking among those who smoke? Group of answer choices 41% 23% 33% 56% 59%

Q: A group of students were surveyed about the number of siblings they have. The frequencies and…

A: Solution: From the given information, the table of frequencies and relative frequencies of their…

Q: In 1980 and again in 2010, a Gallup poll asked a random sample of 1000 US citizens "Are you in favor…

A:

Q: Nationally, 80 percent of adults own an thermometer. You are interested in whether the same…

A: We have given that  Sample size n = 100 Sample proportion p^=75%=0.75 Population proportion…

Q: Refer to Exhibit 9-61. The test statistic is O O O-1.6 O 1.6 -2.80 1.25

A: It is given that  Population proportion, p = 50% = 0.50 Sample proportion, p^ = 40% = 0.40 Sample…

Q: Good City Problem In 1990, a study revealed that 72% of residents in a particular city felt the city…

A:

Q: A sample has SS= 20 and s? = 4. How many scores are in the sample?

A: Six scores are in the sample.

Q: In a national survey college students were​ asked, "How often do you wear a seat belt when riding in…

A: The objective of the question is to understand the frequency distribution of the responses to the…

Q: Approximately 19% of music lovers like Country Music. Of those who do, 99% do not have mild brain…

A:

Q: Anya gathered a random sample of chips from a popular company. She calculated data on different…

A: Given that Arya gathered a random sample of chips from a popular company and for the data collected,…

Q: Part B. The absolute risk of getting diabetes in the UK if you are an obese adult is 63.4%. The…

A: Absolute risk of getting diabetes if you are an obese = 63.4% Absolute risk of getting diabetes if…

Q: Foot temperatures: Foot ulcers are a common problem for people with diabetes. Higher skin…

A: We have given: The left foot temperature: The right foot temperatureThe data is presented in the…

Q: In a survey, editors of a magazine asked 250 people whether or not they smoke and whether or not…

A: The answer is explained below,

Q: there is 70% chance they should hit atleast how many pitches this season?

A: Given that, there is 70% chance they should hit.

Q: town council commissioned a random sample of 85 households to estimate the number of four-wheel…

A: From the given information we find the estimate the number of four-wheel vehicles per household in…

Q: What is the most preferred flavor of coffee at Starbuck? A survey was done with 40 customers of…

A: The objective of the question is to understand the statistical terms in the context of a survey…

Q: In 2008 the Better Business Bureau settled 75% of complaints it received (USA Today, March 2, 2009).…

A: In part b), sample size is 450. In part d), sample size is 200.

Q: 1. What are the null and alternative hypotheses? Ho: p= 0.5000 Ha: p>0.5000 2. Calculate the null…

A: Given: No. of crashes occur, x=107 Sample size, n=195

Q: A nurse practitioner is studying the effects of sugary drinks on weight gain. To begin the study,…

A: Let us suppose the sample size equals n = 100 From the give relative frequency histogram we have the…

Q: Every year, the students at a school are given a musical aptitude test that rates them from 0 (no…

A:

Q: A recent study indicated that 43% of the 100 women over age 55 in the study were widows. Round up…

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Q: The test for a certain disease is 86% accurate.  A hospital tests a sample of 5000 patients for this…

A: Accuracy of the test is 86% Inaccuracy of the test = 14% N = Total number of patients = 5000…

Q: Please answer Question E Below is a sample of 64 responses of a survey of Ward 3 residents in…

A: Given,n=64p=0.69mean(μ)=0.69standard deviation(σ)=p(1-p)nσ=0.69(1-0.69)64σ=0.0578

Q: Approximately 25% of music lovers like Country Music. Of those who do, 5% have mild brain damage.…

A: Given: 25% of music lovers like Country Music. Of those who do like Country music, 5% have mild…

Q: In a group of 17 students, the score of 1, 2, 3, and 4 were given from the judges in a competition.…

A:

Q: Suppose we include Tyrion in the study as the seventeenth observation. The summary statistics for…

A: In this case, the response variable is BAC (y) and predictor variable is the consumption of alcohol…

Q: Several years ago, two companies merged. One of the concerns after the merger was the increasing…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: Approximately 19% of music lovers like Country Music. Of those who do, 99% do not have mild brain…

A: It is given that, approximately 19% of music lovers like Country Music.

Q: America OnLine published a survey question. Among the 2,300 Internet users who responded, 20%…

A: From the given information, America OnLine published a survey question. Among the 2,300 Internet…

Q: Assuming the requirements are met for the anchovies study and using a significance level of 10%, the…

A:

Q: According to a polling organization, 24% of adults in a large region consider themselves to be…

A: The hypothesized proportion is 0.24.

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.