Fifty-five percent of the students at Middletown High School use "lunch cards" to charge their lunch, rather than bringing money to school. Assuming that the method of payment (cash or lunch card) for one student is

Q: After being rejected for employment, Kim Kelly learns that the Bellevue Credit Company has hired…

A: The number of sampled employees, n=19.The number of selected employees that are women is 4.The…

Q: According to the Mortgage Bankers Association, 8% of U.S. mortgages were delinquent last year. A…

A: p=0.08q=1-0.08=0.92n=8A random variable XBinomial(n=8 , p=0.08)P(X=x)=

Q: A Food Marketing Institute found that 51% of households spend more than $125 a week on groceries.…

A:

Q: Suppose there is a 11.7% probability that a randomly selected person aged 20 years or older is a…

A:

Q: If a student is selected at random from Ms. Avery's homeroom, what is the probability that the…

A:

Q: A study was conducted to determine whether there were significant differences between medical…

A:

Q: randomly selected person aged 30 years or older is male, given that he or she jogs. What is the…

A:

Q: Assuming that the population is half male and half female, what is the probability that a random…

A: From the provided information,The population is half male and half female, probability of male (p) =…

Q: A credit card company has a 0.01 default rate on its accounts. If 20 randomly selected accounts are…

A: Given information:A credit card company has a 0.01 default rate on its accounts. 20 randomly…

Q: Consider the probability that ta least 25 out of a sample of 1200 people will use the emergency room…

A: Given the large sample size and the binary nature of the outcome (either a person uses the emergency…

Q: According to a national​ study, 32​% of taxpayers used computer software to do their taxes for a…

A: From the given information, 32​% of taxpayers used computer software to do their taxes for a certain…

Q: A corporation receives 120 applications for positions from recent college graduates in business.…

A: Given: p=0.4 n=120

Q: survey of 2436 men age 18 and older in 1998 for the commonwealth Fund indicated that more than half…

A: If the prior information is not known, we assume that sample proportion is, Critical value: From…

Q: Suppose that 9% of college undergraduates suffer from a psychological disorder. What is the…

A: Let p be the probability that an undergraduate has a psychological disorder. Given that p = 0.09 Let…

Q: According to the Cable and Telecomm. Association for Marketing, 30% of cable television subscribers…

A: Given : n = 15 p = 0.30 Let X be the number of cable television subscribers.

Q: 64% of Americans operate the use of toliets in public restrooms with their foot. Suppose a random…

A:

Q: It is known that 15% of the seniors in a large high school will enter military service upon…

A: Given,15% of the seniors in a large high school will enter military service upon graduation. That…

Q: What is the perimeter of a square with side lengths of 11 meters and 7 meters?

A: Solution: The perimeter of a square is calculated by using the following formula:

Q: Suppose the proportion of elementary students in Texas that are enrolled in fully remote learning…

A: Given that p = 0.20, n = 100, p(x<=10) = ?

Q: Suppose that a poll finds that 33.7​% of taxpayers who filed their tax return electronically​…

A: n=3p=0.337A random variable XBinomial(n=3, p=0.337)P(X=x)=

Q: Suppose there is a 11.8% probability that a randomly selected person aged 40 years or older is a…

A: Let F denotes Female J denotes Jog From the given information

Q: In a survey of consumers aged 12 and older, respondents were asked how many cell phones were in use…

A:

Q: A recent poll indicates that 48% of all registered voters in America plan to vote for a specific…

A: given data, p=0.48n=12q=1-0.48=0.52p(X=x)=nCx *px*q(n-x) (binomial distribution)x= no. of ragisterd…

Q: 3) Suppose that among employed women, 25% have never been married. Suppose we randomly sample women…

A: Given that, among employed women, 25% have never been married p=0.25 We have to find probability…

Q: omly selected person aged 20 years or older is male and jogs? Would it be unusual to randomly sel r…

A: Given P(J)  = 26.6% =0.266 P(M|J) = 12.4% =0.124

Q: Suppose eight students in a statistics class of 12 students are sophomores. What is the probability…

A: Total students = 12Sophomores = 8 Not sophomores = 12 - 8 = 4

Q: What is the probability that all of the randomly selected interviewees were in favor of considering…

A: Assume that 79.5% of Americans are in favor of considering restrictions on assault weapons. Suppose…

Q: An insurance company believes that drivers can be divided into two classes, those that are of high…

A: We use Bayes theorem to solve this problem. Given high risk drivers are 20% and their risk…

Q: . What is the probability that 187 or more of the sample will approve of President Biden’s andling…

A:

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

A:

Q: Assuming that the population is half male and half female, what is the probability that a random…

A: Given :Assuming that the population is half male and half female So , the population proportion of…

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: Lactose intolerance affects about 20% of non-Hispanic white Americans. If a person is selected from…

A: Solution: 2. From the given information, Lactose intolerance effects about 20% of non-Hispanic white…

Q: It is stated by the IRS that 71% of filed returns receive a refund.  If you were to sample 50…

A: According to the given question, it is stated by the IRS that 71% of filed returns receive a refund.…

Q: After being rejected for employment, Appa Love learns that the Old West Credit Company has hired…

A: 1. According to the provided data, the sample size, n is 20 and the value of x is 6. The claimed…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.