A marketing research firm advises a new client that approximately 15% of all persons sent a sweepstakes offer will return the mailing. Suppose the client sends out 10,000 sweepstakes offers. a. What is the probability that fewer than 1,430 of the mailings will be returned? b. What is the probability that more than 1,600 of the mailings will be returned?

Q: In a survey of health insurers,  400 baby boomers and 600 pre-boomers were asked: do you believe…

A: Obtain the probability that he or she is a baby boomer, if a respondent chosen at random from those…

Q: A produce shipper has 10,000 boxes of bananas from Ecuador and Honduras. An inspection has…

A: Probability :        It is defined as the ratio of favorable outcomes to the total number of…

Q: In an NBA championship series, the team that wins four games out of seven wins. Assume that team A…

A: Given that, In an NBA championship series, the team that wins four games out of seven wins. Assume…

Q: A record-store owner assesses customers entering the store as high school age, college age, or…

A:

Q: Given that 58% of all gold dealers believe next year will be a good one to speculate in South…

A:

Q: 3)- Records at an industrial plant show that 12% of all injured workers are admitted to a hospital…

A: Let us denote: A=The event that an injured worker is admitted to a hospital for treatment.  B=The…

Q: In a large statistics exam room, there are 150 accounting students (20 of whom are left handed), 40…

A: No of accounting students = 150 No of left handed accounting students = 20 No of management students…

Q: 18. On the average, two students per hour report for treatment to the first-aid room of a large…

A: Givenon average 2 students per hour report for treatmentλ=2x~poisson(λ=2)P(X=x)=e-λ×λxx! ; x≥0

Q: A record-store owner assesses customers entering the store as high school age, college age, or…

A: A) Probability of the randomly chosen customer entering the store will make a purchase is…

Q: What is the probability that 15​,16​,17​,18​, or 19npeople in the sample are in favor of retaining…

A: d. Obtain the probability that 15, 16, 17, 18, or 19 Spaniards from the sample are in favor of…

Q: Do Generation X and Boomers differ in how they use credit​ cards? A sample of 1,000 Generation X and…

A: A sample of 1,000 Generation X and 1,000 Boomers revealed the results in the given table.

Q: Statistics released by the National Highway Traffic Safety Administration and the National Safety…

A: Let,  The total number of drivers n = 400 We consider it success if a driver is drunk. The…

Q: In a study by Peter D. Hart Research Associates for the Nasdaq Stock Market, it was determined that…

A: e) The sample size n is 20. The probability of U.S adults invest in mutual funds (p) is 0.40.

Q: A survey of new Toyota Corolla owners has shown that during the first year of ownership, 11% of…

A: x = no. of time needs repair in a year x p(X) 0 0.75 1 0.11 2 0.10 >=3 0.04

Q: 3. According to a July, 1999, article in the New York Times, venture capitalists had this rule of…

A: Solution

Q: a) Why is this a legitimate finite probability model?    (b) What is the probability that the…

A:

Q: A survey is being conducted in a county where 63% of the voters are Democrats and 37% are…

A: Given: A survey is being conducted in a country where 63% of the voters are democrats and 37% are…

Q: c. A bag contains 20 tennis balls, of which four are defective. If two balls are selected at random…

A: c.   Probability =Favorable caseTotal casesFavourable case : Number of chance to get both defective…

Q: In an NBA championship series, the team that wins four games out of seven wins. Assume that team A…

A:

Q: A large bank that issues many loans for General Motors(GM)estimates that 70% of the loans are…

A:

Q: 4. A set of traffic lights shows green for 45 seconds, amber for 5 seconds and red for 30 seconds.…

A: From the given information, Total time taken by traffic light is 80 seconds. For green it takes 45…

Q: An auditor for Health Maintenance Services of Georgia reports 40% of policyholders 55 years or older…

A: Note: Hi there! Thank you for posting the question. As there are multiple sub parts, according to…

Q: The Pew Research Center finds that the demographic make-up of political parties is changir…

A: Democrat Republican Total College degree 37 31 68 No College degree 63 69 132 Total 100 100…

Q: A bank has the following data on the gender and martial status of 200 customers…

A: P(single female )=30/100=0.15 P(married male)=100/200=0.5

Q: A Harris Interactive survey for Inter- Continental Hotels & Resorts asked respondents,       “When…

A: a) 23% of the respondents stick with their tour group  So, p = 0.23 size of the sample, n=6…

Q: According to a survey, 31% of teenagers could recognize a picture of legendary film star John Wayne.…

A: We have to find out given probability that Rendomly selected  teenagers could recognize John…

Q: A marketing research survey shows that approximately 80 percent of the car owner surveyed indicated…

A: Probability of an event is chances of occurrence of the event. Probability of an event is computed…

Q: It is estimated that 26% of all California adults are college graduates and that 30% of California…

A:

Q: A) Calculate the probability that exactly 6 out of 10 randomly sampled 18- 20 year olds consumed an…

A: Given: p = probability that 18-20 year olds consumed alcoholic beverages in 2008 = 69.7% = 0.697.…

Q: 5) Students in a political science course were asked to describe their politics as "Liberal",…

A: This is Conditional probability question

Q: Market research in a particular city indicated that during a week, 18% of all adults watch a…

A: Percentage of adults watch a television program oriented to business and financial issues is 18%.…

Q: In a given​ year, 1,841,277 males and 2,071,896 females were born in a certain country. If a child…

A:

Q: About 10% of all adults deliberately do a one-time fling and feel no guilt about it. In a group of…

A:

Q: Do Generation X and Boomers differ in how they use credit cards? A sample of 1,000 Generation X and…

A:

Q: a) What is the probability that a randomly chosen male respondent or his partner has blue eyes? b)…

A: HERE GIVEN CONTIGENCY TABLE OF COLOR OF EYES OF MALE AND HIS PARTER AS PER POLICY I  HAVE CALCULATED…

Q: The grades of a freshman college class, obtained after the first year of college, were analyzed.…

A: Percentage of students In top quarter is 70%. College class had graduated in the upper 10% of their…

Q: The industry standards suggest that 10% of new vehicles require warranty service within the first…

A:

Q: In a given​ year, 1,845,909 males and 2,015,569 females were born in a certain country. If a child…

A: Solution

Q: Researchers at a reputable university and a reputable health organization claim that approximately…

A: Binomial distribution: A discrete r.v. X taking values 0,1,2,3, …., n is said to follow a binomial…

Q: An entrepreneur owns seven corporations, each with more than $10 million in assets. The entrepreneur…

A: Given,n=7p=0.12q=1-pq=1-0.12=0.88A random variable X~Binomial(n=7 , p=0.12)P(X=x)=7x0.12x0.887-x  ;…

Q: In a marketing research survey, people are interviewed about product usage. One of the questions is…

A: Given: Probability of brand A, P(A)=14%P(A)=0.14 Probability of brand B, P(B)=9%P(B)=0.09 The…

Q: Eleven percent of American children (ages 4 to 17) have Attention Deficient Hyperactivity Disorder…

A:

Q: 2. The table below includes all of the programs offered at a sports complex and the number of…

A: From the table total number of students      = 28+36+42+30+26+33+35+41+29     = 300.   Let us define…

Q: . The average number of automobiles per minute stopping for a gas at a particular service station…

A: Given data, lamda=3 P(X>2)=? Poission distribution isP(X=x)=e-lamda*lamdaxx!

Q: R. H. Bruskin Associates Market Research found that 40% of Americans do not think that having a…

A: It is an important part of statistics. It is widely used.

Q: The quality-control department of Starr Communications, the manufacturer of video-game cartridges,…

A: Let,A be the cartridges sold have video defectsB be the cartridges sold have audio defectsFrom the…

Q: According to Consumer Digest (July/August 1996), the probable location of personal com- puters (PC)…

A: a) The probabilities that PC are in adult bedroom, child bedroom, other bedroom, office or den and…

Q: (a) What is the probability that a PC is in a bedroom? (b) What is the probability that it is not in…

A: here use given probability

Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative parameter being estimated. According to the actual definition of bias, it refers to the tendency of a statistic to overestimate or underestimate a parameter.