Suppose that you are looking for a student at your college who lives within five miles of you. You know that 55% of the 280 students do live within five miles of you. You randomly contact students from the college until one says he or she lives within five miles of you. Find the proability it will take 12 of them until one says he or she lives within five miles of you.

Q: Last year at Townsburg High School, 28% of the graduating seniors took the ACT exam, 34% of the…

A: It is given that the proportion of the graduating seniors took the ACT exam is 0.28, the proportion…

Q: Four students achieve the following grades on their midterm which was out of 20 marks: 4, 4, 4, 20.…

A: The mode is 4 as its is the highest occurring frequency. So it will reflect the accuracy or more…

Q: A medical researcher says that less than 79​% of adults in a certain country think that healthy…

A: Given: Sample size of adults (n) = 300 Proportion of adults who think that healthy children should…

Q: Wendy Watersaver just received her monthly water usage data from her local water department. For the…

A:

Q: A researcher rejected the null where r(146) = .148, p = .03 and concluded that the effect size was

A: Reviewing information, Given that, r=0.148p=0.03

Q: A pair of fair dice is rolled once. Suppose that you lose $10 if the dice sum to 4 and win $15 if…

A:

Q: 4. Last week Sarah had exams in Math and in Spanish. On the Math exam, the mean was p = 40 with o =…

A:

Q: Dorothy Little purchased a mailing list of 2,000 names and addresses for her mail order business,…

A: From the provided information, the probability that the names list is non authentic, is 40%. That is…

Q: structed to offer them a double-miles promotion. About 6% of all cardholders hold platinum cards,…

A: here given , Raaj works at the customer service call center of a major credit card bank. Cardholders…

Q: Night Owls - A MSU psychologist reports that 40% of MSU students regularly sleep less than 8 hours…

A: The random variable time follows normal distribution. The population proportion is 40%. We have to…

Q: A teacher has two large containers filled with blue, red, and green beads, and claims the proportion…

A: Let p1= the true proportion of red beads in container 1 and p2= the true proportion of red beads in…

Q: In a recent poll, 450 people were asked if they preferred cats or dogs. 52% said they preferred dogs…

A: Given data: n = 450  52% said they preferred dogs and 48% of people said they preferred cats, with a…

Q: ten percent of adults say oatmeal is their favorite cookie. You randomly select 12 adults and aks…

A: Given that  Number of trials n=12 Success of probability p=0.10 X~binomial (n,p) nCx = n!/x!(n-x)!

Q: A poll done for Newsweek found that 15% of Americans have seen or sensed the presence of an angel. A…

A: In statistic, Individual means, a thing on which the characteristics is studied. The total…

Q: A teacher has two large containers filled with blue, red, and green beads, and claims the proportion…

A: Assume that p1 and p2 are the true proportion of red beads in container 1 and 2, respectively.

Q: In Nigeria, with the monsoon, there was a drastic increase in cases of Malaria. Peniguillin is a…

A: Given, Proportion of nausea treated with peniquillin Proportion of nausea treated with placebo The…

Q: A therapist believes that the music a child listens to may have an impact on the number of words on…

A: Given Null hypothesis H0 : µd = 0 Alternative hypothesis Ha: µd ≠ 0A sample size of 19 students is…

Q: ​Claim: A majority of adults would erase all of their personal information online if they could. A…

A: ​Claim: A majority(i.e. more than 50%) of adults would erase all of their personal information…

Q: Suppose there are 4 people in a race, including Patrick and D´ıdac. We record the ranking of each…

A:

Q: Last year at a local country club, 60% of the golfers were “full members”, 30% were “junior…

A: Given: Observed values of a sample is as follows Full members 210 Junior members 100 Guests…

Q: Sarah chose to live on the honors floor of her dorm because she was told that the students on that…

A: Denote μ as the population mean hours of study.

Q: In a recent poll, 360 people were asked if they preferred cats or dogs. 49% said they preferred dogs…

A:

Q: Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the…

A: null and alternative hypothesis are contradict to each other, we claim the null hypothesis to…

Q: Last week Andi had exams in Chemistry and in Spanish. On the chemistry exam, the mean was u = 30…

A: To solve the above question, we use the z score formula Andy took two Exams, Chemistry and Spanish.…

Q: A poll of 500 people determines that 382 like ice cream and 362 like chocolate.  How may people like…

A:

Q: The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.25…

A: Given,n=1908x=439p^=xnp^=4391908=0.2301

Q: You have a pop quiz for which you haven't studied. The multiple choice quiz has 10 questions and 3…

A: Introduction to binomial distribution: Consider a random experiment involving n independent trials,…

Q: e Academy of Orthopedic Surgeons states that 80% of women wear shoes that are too small for their…

A:

Q: A toll collector on a highway receives $8 for cars and $9 for buses. At the end of a 4-hour period,…

A: To determine: The possible solution for the number of cars and buses where a toll collector on a…

Q: Night Owls - A MSU psychologist reports that 40% of MSU students regularly sleep less than 8 hours…

A: Given that:  population proportion(p)=0.40 x=77 n=215

Q: A politician running for Senate in California claims that only 34% of Californians approve of the…

A: Concept of sampling distribution of sample proportion: Let a particular characteristic of a…

Q: A teacher has two large containers filled with blue, red, and green beads, and claims the proportion…

A: Given that  Let p1 = the true proportion of red beads in container 1 and p2 = the true proportion of…

Q: A drug company creates a medicine designed to prevent colds, and states that it is equally effective…

A:

Q: A medical researcher says that less than 76​% of adults in a certain country think that healthy…

A: Denote p as the true population proportion of adults in a certain country, who think that healthy…

Q: Michael, a nurse manager at a local hospital, wanted to know more about the hospital's full-time…

A: In statistics, the population consists the entire set of entities which are under study, whereas, a…

Q: Recently a community college offered a 2-credit course to help students with math anxiety. At the…

A:

Q: A fair did is rolled two times. What is the probs that both rolls are 3?

A: When a die is rolled there are 6 possible outcomes 1,2,3,4,5,6. When a fair die is rolled two times…

Q: According to a recent report, 12% of all adults eat pizza with a knife and fork.  A researcher…

A: Population proportion is given as 12%

Q: The claim is that the proportion of adults who smoked a cigarette in the past week is less than 0.35…

A: The z-test determines the claim about one population proportion.

Q: A recent poll of Ms. Vergara's 160 students revealed the following.  They were asked if they did or…

A: Let U be the set of all students. Now U=160. A denotes the set of all students who studied hard for…

Q: medical researcher says that less than 85​% of adults in a certain country think that healthy…

A: Given that  A medical researcher says that less than 85​% of adults in a certain country think that…

Q: Ajar is filled with a diluted chemical, five parts of which are water and seven parts are chemical.…

A: Note: As per our company guidelines we are supposed to answer the first question only. Kindly as the…

Q: A college biology teacher wants to know whether being tutored at the study lab will help her…

A: Here teacher wants to know whether being tutored at the study lab will her students for scoring high…

Q: Suppose 50 percent of the customers at Pizza Palooza order a square pizza, 70 percent order a soft…

A: Given Information: P (square pizza is ordered) = 50% or 0.5 P (Soft drink is ordered) = 70% or 0.7…

Q: A medical researcher says that less than 86​% of adults in a certain country think that healthy…

A:

Q: 18. Suppose that in a book club, 60% of the members are women, and 35% like to read poetry. If…

A: Answer Option 4th 21% is correct

Q: For this problem, assume the test had 8 true-false questions and 10 multiple-choice questions, and…

A: Given that there are 8 true or false questions and 10 multiple choice question and each multiple…

Q: A medical researcher says that less than 85​% of adults in a certain country think that healthy…

A:

Q: Mr. Bennett, the owner of two car dealerships in Manchester, is holding a contest to see whic one…

A: Given, Mr. Bennett is the owner of two car dealerships in Manchester.  Manchester cars already(at…

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.