The risk of hepatoma among alcoholics without cirrhosis of the liver is 32%. Suppose we observe 9 alcoholics without cirrhosis. What is the probablility that exactly one of these 9 people have a hepatoma? Please show work

Q: According to theElgin Community College website, approximately 56% of ECC students are female.…

A: Claim:- According to the Elgin Community College website, approximately 56% of ECC students are…

Q: Two popular drugs used for the treatment of depression are Resithan and Exemor. A random sample of…

A:

Q: A wholesaler haş recently developed a computerized sales invoicing system. Prior to implemegting…

A: Given data:  We have the computerized data of 500 invoices { here, historical % is the frequency…

Q: In a certain school district, it was observed that 30% of the students in the element schools were…

A: Let p be the population proportion of students in the element schools were classified as only…

Q: When comparing 2 groups, we used a t-test. When comparing 3 groups or more, we learned Tukey’s HSD…

A: When comparing 2 groups, we used a t-test. When comparing 3 groups or more, we learned Tukey’s HSD…

Q: A recent report stated that only 20% of all college graduates find work in the field of their…

A: Given data: Sample size = 400 x = 100 Consider significance level  = 0.05 To test the claim: Does…

Q: a survey by Bea et.al., it was found that 218 of 1,062 urban residents had a history of allergic…

A:

Q: It was studied in the past that 38% of all adults favored death penalty. Do we have reason to…

A:

Q: Historically, 15% of all Americans claim to have seen a UFO.  A paranormal researcher claims that…

A: Consider that p is the true proportion of Americans, who claimed to have seen a UFO.

Q: Most adults would erase all of their personal information online if they could a software firm of…

A: Given data, n=413 p^=0.59 Population proportion p=0.5 Test statistic=?

Q: A recent study indicates that, on average, the typical American spends 2.57 hours per day surfing…

A: First, we have to find the correct null and alternative hypotheses. Then we choose the correct test…

Q: For one particular study, suppose a researcher found evidence that at least one of the four group…

A: Here given a evidence of group of means The researcher wishes to keep the probability of making at…

Q: A marriage counselor has traditionally seen that the proportion p of all married couples for whom…

A: Givenp=0.79x=214n=250p^=xn=214250=0.856α=0.10

Q: A recent study reported that in a random sample of 248 women, 58 had changed their political…

A:

Q: In a study of patients on sodium-restricted diets, 55 patients with hypertension were studied. Among…

A:

Q: A recent survey asked 1200 randomly selected U.S. adults if they believe that the U.S. federal…

A: Let the proportion of women (p1) and men (p2) who believe that the U.S. federal government is not…

Q: Draw a probability tree to help you to work out the probability that a randomly chosen person is…

A: Draw a probability tree to help you to work out the probability that a randomly chosen person is…

Q: A labor statistician claims that 6% of the labor forces will be laid off likely  to pandemic impact.…

A: Solution: Let X be the number of employees will be likely to be laid off and n be the sample number…

Q: he Genetics and IVF Institute conducted a clinical trial of the XSORT method designed to increase…

A: Given Information: Sample size (n) = 325  Proportion of having girl baby (p) = 295/325 = 0.9077

Q: Before 1918, approximately 60% of the wolves in a region were male, and 40% were female. However,…

A: Given data  Before 1918 approximately 60% of the wolves in a region were male 40% were female

Q: A recent study at a local college claimed that the proportion, students who commute more than…

A:

Q: In a survey by Bea et.al., it was found that 218 of 1,062 urban residents had a history of allergic…

A: From the provided information, 218 out of 1062 urban residents had a history of allergic disorder.…

Q: 1. For this problem, treat the data in the Pre-Module and Post-Module scores as independent samples.…

A: Given: The data in pre-module and Post module scores are independent samples. Sample size of both…

Q: An ambulance service claims that at least 65% of the calls received involve life-threatening…

A: Given information- Population proportion, p = 0.65 Sample size, n = 150 Significance level, α = 0.05…

Q: A grinding machine will be qualified for a particular task if it can be shown to produce less than…

A: Where p is the proportion of defective parts

Q: A college professor hypothesizes that readers will comprehend more when reading a graphic novel than…

A: Given The professor will assign some students to the control group with a reading assignment in…

Q: From the study on work sampling, it was found that a group of machines - consisting of 4 machines -…

A: It is given that 65% of machines can be operated without operators and 35% need operators to…

Q: Twelve subjects with diagnosed hypertension were randomly selected for this study. The age at which…

A: We have given that data  Mean = sum of all observations/total number of observations.  If level of…

Q: In a recent study, Kramer et al. (2014) took a random sample of 320,000 Facebook users and divided…

A:

Q: If the odds of catching the flu among individuals who take vitamin C is 0.0342 and the odds of…

A: The odds of catching the flu among individuals who take vitamin C is 0.0342. The odds of catching…

Q: In a recent study; it was found that 62 percent of college students drink heavily and drive.…

A: The hypotheses can be constructed as: Null hypothesis: H0: p = 0.62 Alternative hypothesis: H1: p…

Q: The U.S. Bureau of Labor and Statistics reported that a person between the ages of 18 and 34 has had…

A:

Q: A college professor hypothesizes that readers will comprehend more when reading a graphic novel than…

A: The characteristics of the treatment and control groups

Q: According to a home securities company, the highest percentage of home burglaries occur during the…

A: The critique of the study is invalid Since, the data is collected for 10 years of period and…

Q: An antiaepressant has historically been known to relieve depression for 80% of patients who use the…

A: Note: According to Bartleby guidelines, expert solve only one question and maximum 3 subpart of the…

Q: A social worker in a certain city claimed that only 25% of the children between 19 and 35 months had…

A: Given ,  Sample size = n = 145 Number of children had not had all of their vaccines = x = 44 Sample…

Q: a manufacturer of cell phone screens is concerned because 12 percent of the screens manufactured…

A: From the provided information, 12 percent of the screens manufactured using a previous process were…

Q: It is believed that from among senior high school students, 15% would like to pursue engineering…

A: It is believed that from among senior high school students, 15% would like to pursue engineering…

Q: a company puchases shipments of machine compnents and uses this acceptance sampling plan: randomly…

A: The probability that hits whole shipment will be accepted is obtained below: From the given…

Q: The Mayoral challenger claims that less than 30% of residents over the age of 25 have bachelor's…

A:

Q: A geneticist is interested in the proportions of males and females in a population who have a…

A:

Q: A consulting agency reports that only 30% of a company's website users can successfully use a…

A: Given that, n=150, p=0.36 The null and alternative hypothesis is, H0:P=0.30Ha:P≠0.30 Here we use…

Q: Based on these findings, can we reject the company's claim that the drug is equally effective for…

A:

Q: While an independent samples t-test compares two separate groups of people, a paired sample t-test…

A: The t-test is a statistical hypothesis test. In this test the statistic follows a student's…

Q: Two popular drugs used for the treatment of depression are Resithan and Exemor. A random sample of…

A:

Q: A mail order company has 12.5% success rate of having people purchase their products.lt mails…

A: From the given information, n =686.

Q: A research is presented. For each, identify the (A) population and (B) sample in the study 3.…

A: Population is a group of items units or subjects which is under reference of study. Population may…

Q: A college professor hypothesizes that readers will comprehend more when reading a graphic novel than…

A: Control groups are essential in experimental design.  Treatment group also known as experimental…