To determine what effect the salespeople had on purchases, a department store polled 700 shoppers as to whether or not they had made a purchase and whether or not they were pleased with the service. Of those who had made a purchase, 125 were happy with the service and 111 were not. Of those who had made no purchase, 148 were happy with the service and 316 were not.Find the probability that a shopper who was happy with the service had made a purchase (round the answer to the nearest hundredth). What can you conclude?About % of those who were happy with the service made a purchase.

Q: Find the probability that among 16 randomly selected people, at least 1 believes that college is no…

A:

Q: An alcohol awareness taskforce at a Big Sky university sampled 400 students after the midterm to ask…

A: The table is:     Did well on the midterm Did poorly on the midterm Studied for the…

Q: Dana Hills High School was considering going back to campus rather than remote instruction for the…

A: Probability quantifies the chances of happening an event. The probability values always lie in the…

Q: Dana Hills High School was considering going back to campus rather than remote instruction for the…

A:

Q: To determine what effect the salespeople had on purchases, a department store polled 700 shoppers as…

A: Given table :   Happy with service Not Happy with service Total purchased 130 119 249 Not…

Q: Based on a poll, among adults who regret getting tattoos, 20% say that they were too young when they…

A: It is given that n = 5 and p = 0.20.

Q: The leading brand of powdered milk in the Philippines has a market share of 45%. A sample of 14…

A: X: the leading brand of powdered milk in the philippinesX~Binomial(n,p)where n=14…

Q: Dana Hills High School was considering going back to campus rather than remote instruction for the…

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Q: Thirty-five percent of the people who own cellphones use their phones to send and receive text…

A: Given,n=3p=0.35Let X=no.of people use their phones for textingX~Binomial(n=3 , p=0.35)P(X=x)=3x…

Q: Based on a​ poll, among adults who regret getting​ tattoos, 23% say that they were too young when…

A: Solution: Let X be the number of adults say that they were too young when they got their tattoos and…

Q: A survey reports that 53% of college students use Google as their search engine. If 100 students of…

A: From the provided information, Sample size (n) = 100 Probability (p) = 0.53 Now,

Q: A survey showed that 23% of college students read internet news on a regular basis and that 81% of…

A:

Q: The Newspaper reports that among individuals in the 40 to 50 age, 45% drink coffee. If 200 people of…

A: Givenp=0.45n=200let "x" be the number of coffee…

Q: Dana Hills High School was considering going back to campus rather than remote instruction for the…

A:

Q: In a recent study, 65% of people surveyed indicate chocolate was their favorite flavor of ice cream.…

A: Given,n=11p=0.65Let X =no.of people name their favorite flavor of ice cream.X~Binomial(n=11 ,…

Q: eens were recently surveyed as to which notifications appeared on their phone within a single class…

A: General formula of probability is ,   Probability = Number of favorable outcomes Total outcomes…

Q: A doctor's office surveyed patients about their eating and exercise habits. The responses are…

A: According to given figure probabilityP of patients reported eating healthy or exercise regularity is…

Q: The newspaper reports that among individuals in the 18 to 22 age, 25% drink coffee. If 400 people of…

A: Given,n=400p=0.25q=1-0.25=0.75np=400×0.25=100≥5nq=400×0.75=300≥5we can use normal…

Q: based on a Harris poll among adults who regret getting tattoos 20% say that they were too young.…

A: Binomial distribution :  Binomial distribution describes the possible number of events occurs in…

Q: The National Coffee Association reports that among individuals in the 45 to 55 age, 70% drink…

A:

Q: Based on a​ poll, 61​% of Internet users are more careful about personal information when using a…

A:

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: Below are the results of a survey of 1364 individuals who were asked if they use social media and…

A: Given that the respondent is female. The total number of female respondents = 395+291=686

Q: In the United States, 75 percent of adults wear glasses or contact lenses. A random sample of 10…

A: A random variable X, is said to follow binomial distribution if the probability mass function of X…

Q: Based on a poll, among adults who regret getting tattoos, 30 % say that they were too young when…

A:

Q: Based on a​ poll, among adults who regret getting​ tattoos, 23% say that they were too young when…

A: Givenp=0.23n=10x~Binomial(n=10,p=0.23)P(X=x)=(nx)×px×(1-p)n-x     ; x=0,1,...,n

Q: In a statistical survey, 400 students were asked whether they had made a FLYING FOX.or SWIM. The…

A:

Q: Out of a survey of 400 customers, under the assumption that 0.5 is the correct proportion, what is…

A: From the provided information, Sample size (n) = 400 Proportion (p) = 0.5

Q: What is the probability of randomly selecting a member of the traveling public and finding out that…

A:

Q: A school survey found that 7 out of 30 students walk to school. If two students are selected at…

A:

Q: Given 40% of American college students fail to earn a degree and 32% of college students that do…

A: Percentage of people who earn the degree = 60% Percentage of people who earn the degree and don't…

Q: Based on a poll , among adults who regret getting tattoos , 20 % say that they were too young when…

A:

Q: A survey reports that 53% of college students use Google as their search engine. If 100 students of…

A: Given that n=100 p= 0.53 q= n-p=0.47 μx= n*p= 53 Standard deviation= σ= sqrt(n*p*q)=4.991   Add…

Q: A survey of students to determine if they had a pierced ear was given. The results are summarized in…

A: Concept: Probablity=Total favourable outcomestotal outcomesPA|B = PA∩BPB     Given table is Take B…

Q: According to data on the sale of Vehicles in Barbados, it was calculated that men purchase 75% of…

A: From the provided information, Men purchase 75% of vehicles in Babados (p) = 0.75 Sample size (n) =…

Q: At a restaurant, the probability that a customer will order a nonalcohlic drink is .56. Find the…

A: From the provided information, The probability that a customer will order a nonalcoholic drink is…

Q: A survey revealed that 36% of people are entertained by reading books, 30% are entertained by…

A:

Q: An alcohol awareness taskforce at a Big Sky university sampled 400 students after the midterm to ask…

A:

Q: Based on a poll , among adults who regret getting tattoos, 70% say that they were too young when…

A:

Q: large cable company reports that 42% of its customers subscribe to its Internet service, 32%…

A: Given large cable company reports that 42% of its customers subscribe to its Internet service, 32%…

Q: The National Center for Health Statistics reported that of every 1,233 deaths in recent years, 52…

A: Hello. Since your question has multiple, we will solve first question for you. If you want remaining…

Q: In a review class of 80 students, 70 passed the board exam. If a student is selected at random, what…

A:

Q: The leading brand of powdered milk in the Philippines has a market share of 45%. A sample of 14…

A: Given that  n=14 , p=45%=0.45 , q=1-p=1-0.45=0.55 X~Binomial(n=14,p=0.45) X= Number of leading brand…

Q: The leading brand of powdered milk in the Philippines has a market share of 45%. A sample of 14…

A:

Q: A survey revealed that 36% of people are entertained by reading books, 32% are entertained by…

A:

Q: Prior to airport construction, a survey was conducted if the residents in a certain barangay are in…

A: Given that  p=35%=0.35 , q=1-p=1-0.35=0.65 n=350 Note: According to bartleby experts question…

Q: A CNN/USA Today/Gallup poll in April 2005 reported that 75% of adult Americans were satisfied with…

A:

Q: Sixty-three percent of U.S. households have a personal computer. In a random sample of 400…

A: Let p be the proportion of households have a personal computer. Given that p = 0.63 Let X denote the…

Q: A random sample of 2072 adults was taken, and they were asked if they prefer watching sports,…

A: Sports Movies News Total Dog 411 328 514 1253 Cat 180 319 320 819 Total 591 647 834 2072

Q: Based on a​ poll, among adults who regret getting​ tattoos, 23% say that they were too young when…

A: Given,n=10p=0.23Let X=no.of adults to get tattoosX~Binomial(n=10  ,  p=0.23)P(X=x)=10x…

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.