Crime and Punishment: In a study of pleas and prison sentences, it is found that 45% of the subjects studied were sent to prison. Among those sent to prison, 40% chose to plead guilty. Among those not sent to prison, 55% chose to plead guilty.     If one of the study subjects is randomly selected, find the probability of getting someone who was not sent to prison. If a study subject is randomly selected and it is then found that the subject entered a guilty plea, find the probability that this person was not sent to prison

Q: A study wishes to see whether attending prekindergarden affects a child's likelihood to graduate…

A: We want to test the hypothesis Given  X1=215, n1=250 X2=260, n2=340

Q: a) Find the probability of randomly selecting a student who spent the money on gum, given that the…

A: Given: a) We have to find probability of randomly selecting a student who spent the money on gum,…

Q: Each manager of a corporation was rated as being either a good, fair, or poor manager by his/her…

A: We have to determine conditional probability from table. Let denote Master's or Ph.D= A And Poor…

Q: When I was an undergraduate, I helped my father conduct some Child Psychology research about…

A: Given: n = 158 x = number of students answered Turquoise = 38

Q: Do pets and their owners look alike? In an experiment, a statistics student provided subjects with a…

A: From given data we have : X=16,n=25

Q: There are three $20 bills, five $10 bills, eight $5 bills, and four $1 bills in your wallet. You…

A: Use the formula of expected value to determine its value. Determine the probability of each dollar…

Q: From the research conducted by a Cancer Research Institute, it has been found that 5 percent of male…

A: Number of male cancer patients = 50 Number of female cancer patients = 50 Total number of cancer…

Q: Question / Refer to your two-way table from the previous question: Of the 30 vehicles for lease on a…

A:

Q: information when using a public Wi-Fi hotspot? How is the result affected by subjects volunteered to…

A: Given that  Number of trials n=4 Success of probability p=0.61 ,q=1-p=0.39 X~Bin(n,p)…

Q: A worker is chosen randomly from among those who have had a back injury. Calculate the probability…

A: Let us define some events  A: a worker does not lift. B : a worker lifts moderately. C : a worker…

Q: Based on a​ poll, 69​% of Internet users are more careful about personal information when using a…

A: Given Data Probability of success,p = 0.69 Probability of failure,q=(1- 0.69 )= 0.31…

Q: A study showed that ​69.7% of occupants involved in a fatal car crash wore seat belts. Of those in a…

A:

Q: Based on a​ poll, 70​% of Internet users are more careful about personal information when using a…

A: In this case, each surveyed user is inferred to have only options of being "more careful" (i.e.,…

Q: A study assessed the accuracy of self-reported smoking status. Among self-reported nonsmokers, 92…

A: Formula: probability is the number of favourable response divided by total number of sample size.

Q: Atlantic Airways flights were late (arrived or departed 15 minutes late or more). A random sample of…

A: We have given that  Number of trials n=140 Success of probability p =20.4%=0.204 We use normal…

Q: Do pets and their owners look alike? In an experiment, a statistics student provided subjects with a…

A: From given data we have : X=16n=25 Thus sample proportion p^=Xn   =1625=0.64  Total simulation is…

Q: Based on a​ poll, 68​% of Internet users are more careful about personal information when using a…

A: p=0.68  _________________________ P(x≥1) = ?

Q: About 10​% of the population of a large country is nervous around strangers. If two people are…

A: The probability that a randomly selected people is nervous around strangers is 0.10. The probability…

Q: Each month a brokerage house studies various companies and rates each company's stock as being…

A: Company TypeLow RiskModerate to High RiskAerospace company1514Food retailer67Total number of…

Q: In a study of car accident fatalities that involved impaired drivers, it was found that 535 drivers…

A: Solution: From the given information, number of drunk drivers is 535 and the number of drugged…

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

A: Solution: According to a labor statistician's claim, 6% of the labor forces will be paid off. Let p…

Q: Based on a​ poll, 68​% of Internet users are more careful about personal information when using a…

A:

Q: Given a randomly select college student is interested in finance, what is the probability that this…

A: Let us define some events A : student majors in STEM. B : student majors in non-STEM E : student is…

Q: In 2003, 5% of all light vehicles sold (SUVs, pickups, passenger cars, and minivans) in a country…

A:

Q: Computer keyboard failures can be attributed to electrical defects or mechanical defects. A repair…

A: Given data:     The total number of failed keyboards are: n=25 The number of electric defects failed…

Q: In a study, 42% of adults questioned reported that their health was excellent. A researcher wishes…

A: Let us denote X=the number of people with excellent health.n=sample size=13p=probability of…

Q: n a very hot summer day, 5% of the production employees at Midland States Steel are absent from…

A: given data, On a very hot summer day, 5% of the production employees at Midland States Steel are…

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.