what is the probability that between 156 and 240 customers will be satisfied with the service?

Q: A Food Marketing Institute found that 42% of households spend more than $125 a week on groceries.…

A: It was found that 42% of the households spend more than $125 on groceries.That is, the population…

Q: An interview with 20 people revealed that 8 of the 10 women and 5 of the 10 men preferred drinking…

A: let us define a random event E. The probability of occurring of the event, i.e P(E)=Favorable number…

Q: Of 100 patients with a certain disease, 10 were chosen at random to undergo a drug treatment that…

A:

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

A:

Q: The probability that a randomly selected 33​-year-old male chipmunkchipmunk will live to be 44 years…

A: Given, The probability that a randomly selected 3-year-old male chipmunk will live to be 4 years old…

Q: 3 percent of the led lights manufactured by a company are defective, the probability that in a…

A:

Q: It has been been found that 1 out of 10 visitors to a museum buys something from a gift shop. If we…

A:

Q: According to a survey by the Department of Labor and Employment, one-half of Philippine companies…

A:

Q: A shipment of 20 similar laptop computers to a retail outlet contains 3 that are defective. If a…

A: Given Data: p=3/20=0.15 n=2   X~ Binomial (2, 0.15)

Q: Of the 6 people who have taken their seats at a seminar, 2 have black hair. What is the experimental…

A: From the given information, 6 people who have taken their seats at a seminar, 2 have black hair.…

Q: Suppose there is a 14.3% probability that a randomly selected person aged 20 years or older is a…

A: Given,P(a person aged 20 years or older is a smoker)=0.143P(female/he or she smokes)=0.102

Q: In the general population one woman in 10 will develop breast cancer. Research has shown that 1…

A:

Q: A nationwide survey of seniors by the University of Michigan reveals that almost 30.0% disapprove of…

A:

Q: Sixty percent of a population of consumers is reputed to prefer a particular brand A, of vaccine. If…

A: Hai

Q: The American Automobile Association reports that of the fatal car and truck accidents 54% are caused…

A: Binomial distribution: The binomial distribution gives the probability of number of successes out of…

Q: Suppose a math class contains 36 students, 19 females (four of whom speak French) and 17 males (two…

A:

Q: Suppose there is a 10.4% probability that a randomly selected person aged 20 years or older is a…

A: Given that  P(smoke)=10.4%=0.104 P(Males/Smoke)=19.8%=0.198

Q: Suppose there is a 11.2% probability that a randomly selected person aged 35 years or older is a…

A: Given Information: There is 11.2% probability that a randomly selected person aged 35 years or older…

Q: A Food Marketing Institute found that 50% of households spend more than $125 a week on groceries.…

A: From the given information, it is observed that 50% of households spend more than $125 on groceries.…

Q: Suppose a math class contains 47 students, 24 females (four of whom speak French) and 23 males (six…

A:

Q: Assume that in a group of 12 individuals, seven prefer football and five prefer cricket. A random…

A: Given : n = individuals = 12 football = 7 cricket = 5 a) Exactly two prefer football : =C27×C15C312…

Q: A Food Marketing Institute found that 50% of households spend more than $125 a week on groceries.…

A:

Q: A survey of 300 people was done to which ice cream flavor they preferred vanilla or chocolate the…

A: Using the rules of venn diagram and probability we can solve these questions

Q: At a cell phone assembly plant, 82% of the cell phone keypads pass inspection. A random sample of…

A:

Q: Suppose a math class contains 35 students, 19 females (four of whom speak French) and 16 males…

A:

Q: According to the AABB, 40% of the population has Type A blood.  Suppose a certain hospital typically…

A: The mean is,μ=np The standard deviation is, σ=np(1-p) n is the sample size and p is the proportion.…

Q: a proportion of 0.4 are not satisfied with the service offered by the store. In a random sample of…

A: According to central limit theorem if the sample size n and population proportion p satisfies np≥10…

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

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Q: Q2. An association of coffee producers has estimated that 50% of adult workers drink coffee at least…

A: Binomial distribution allows us to compute the probability of observing a specified number of events…

Q: three out of four university students under 25 years old have eaten eggs for breakfast. If a random…

A: Solution: Given data: Probability, P = 3/4  = 0.75 Sample size (n) = 20 To find : the probability…

Q: A marketing survey indicates that 40% of the population owns an automobile, 45% owns a house, and…

A: Given data:     The percentage of the population owns an automobile is: P(A)=40% The percentage of…

Q: A survey has shown that on average, 1 person in 1000 makes a mistake on leaving their belongings…

A:

Q: A certain group of women had a 0.73% rate of red/green color blindness. If a woman is randomly…

A: It is given that a certain group of women had a 0.73% rate of red/green color blindness.

Q: seventy-five percent of the students graduating from high school in a small will attend college. for…

A: A.   Z-score for proportion:

Q: A Food Marketing Institute found that 26% of households spend more than $125 a week on groceries.…

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

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Q: A Food Marketing Institute found that 30% of households spend more than $125 a week on groceries.…

A:

Q: According to a study done by Nick Wilson of Otago University Wellington, the probability a randomly…

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

A: Solution: We are given:32​% of taxpayers used computer software to do their taxes for a certain tax…

Q: Suppose a math class contains 42 students, 18 females (six of whom speak French) and 24 males (four…

A: given that , total students =42 , female students = 18, male students = 24. Female students who can…

Q: 3. Of the population of customers of a store, a proportion of 0.4 are not satisfied with the service…

A: As per our guidelines, we are allowed to answer first question only. Please re-post Q4,5 . Thanks…

Q: What is the probability that in a random sample of 440 voters, less than 48.8% say they will vote…

A:

Q: Suppose a math class contains 27 students, 14 females (six of whom speak French) and 13 males (three…

A: Solution: From the given information, a class contains 14 females. Out of which 6 speck French.…

Q: Of all 3- to 5-year-old children, 56% are enrolled in school. If a sample of 500 such children is…

A:

Q: A Food Marketing Institute found that 42% of households spend more than $125 a week on groceries.…

A: Given that, p = 0.42 1 - p = 1 - 0.42 = 0.58 n = 126

Q: 2) In a Canadian population, 30% of people spend 4 hours or more per day on smartphone; 25% of…

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Q: A small hotel in a popular resort area has 20 rooms. The hotel manager estimates that 15% ofall…

A: Consider X be a random variable which follows binomial distribution indicating the number of…

Q: Suppose a math class contains 39 students, 18 females (three of whom speak French) and 21 males…

A: A math class contains 39 students. That is, n=39. Let F is defined as the student is female, M is…

Q: Suppose a math class contains 41 students, 19 females (two of whom speak French) and 22 males (three…

A: