Suppose that 20% of the subscribers of a cable television company \Vatch the shopping channel at least once a\veek. The cable company is trying to decide whether to replace this channel with a new local station. A survey of 100 subscribers will be undertaken. The cable company has decided to keep the shopping channel if the sample proportion is greater than 0.25. What is the approximate probability that the  cable company will keep the shopping channel, even though the proportion of all subscribers who watch it is only 0.20?

Q: According to USA Today, 65% of Americans are overweight or obese.8 If five Americans are chosen at…

A: Given information Probability that the Americans are overweight = 0.65 n = 5

Q: The Bank of america trends in Consumer Mobility Report indicates that in a typical day,51% of users…

A: Introduction: If X ~ Binomial (n, p), then the probability mass function of X is: Here, n is the…

Q: A​ gender-selection technique is designed to increase the likelihood that a baby will be a girl. In…

A: Given information 821 births consist of 417 girls and 404 boys

Q: Fifty individuals are randomly selected from a population. It is known that, in the population, 5%…

A:

Q: In a survey it was found that 10% of the voters had considered running for the school board.  It was…

A: Let V be the event that selected person voted in the last school board election, R be the event that…

Q: If 23% of all patients with high blood pressure have bad side effects from a certain kind of…

A: Normal approximation to the binomial: From the given information, sample size, n = 120. The…

Q: : The Bank of America Trends in Consumer Mobility Report indicates that in a typical day, 51% of…

A: 1.The probability that at least 70 use their phone at least once per hour is obtained below:From the…

Q: A gender-selection technique is designed to increase the likelihood that a baby will be a girl. In…

A: (a)   Obtain the probability of getting exactly 425 girls in 815 births.   The probability of…

Q: A survey found that 35% of pet owners had their pets bathed professionally rather than do it…

A: Givenp=0.35n=10Let "x" be the people have bathed their pets…

Q: A research is being carried out to determine whether there is a relationship between smoking of the…

A: Here we have given that 40% of the prospective mothers include in the sample is smoker. P( Mother is…

Q: The call center manager at InsuranceCorp is responsible for ensuring customer satisfaction. To this…

A:

Q: A study showed that 64.5​% of occupants involved in a fatal car crash wore seat belts. Of those in…

A: Solution: Let A be the event that  occupants involved in a fatal car crash wore seat belts. P( A)=…

Q: A motion by one of the board members of a town proposed that Brgy. San Vicente be annexed to its…

A:

Q: A survey showed that 84% of adults need correction (eyeglasses, contacts, surgery, etc.) for their…

A: Let there are n trials and each having two outcomes - Success and Failure. The trials are…

Q: A survey conducted by a food company in Flanders indicated that 45% of strawberry buyers could…

A: Given Data: Let X be the random variable of number of strawberry buyers could identify one or more…

Q: A survey showed that 73% of adults need correction ( eyeglasses, contacts, surgery,etc.) for their…

A: Let us denote X= the number of persons who need correction for their eyesight. n= number of trials =…

Q: A market research firm conducts telephone surveys with a 38% historical response rate. What is the…

A: Defines that p is true proportion of telephone numbers that will cooperate and respond to the…

Q: According to U.S. Department of Transportation report, 8% of all the registered cars fail the…

A:

Q: The Bank of america trends in Consumer Mobility Report indicates that in a typical day,51% of users…

A:

Q: A survey showed that 82% of adults need correction (eyeglasses, contacts, surgery, etc.) for their…

A: The probability that at least 18 of them need correction for their eyesight is 0.1191, which is…

Q: A​ gender-selection technique is designed to increase the likelihood that a baby will be a girl. In…

A: See the solution

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

A: Given: p= Population probability of graduating who were admitted through special programs = 0.926 n…

Q: A single-serving coffee machine is programmed to dispense 12 ounces of coffee per serving.…

A: We have given that  X~N( μ,  ?^2 ) Z-score =(x-mu )/sigma mu=12 , sigma = 1.32

Q: A survey showed that 74% of adults need correction (eyeglasses, contacts, surgery, dults are…

A: Given, p=74%= 0.74 n=18

Q: The British government has stepped up its information campaign regarding foot-and-mouth disease by…

A:

Q: The Bank of america trends in Consumer Mobility Report indicates that in a typical day,51% of users…

A:

Q: It is known that there are seven customers arriving per hour at a certain automobile service…

A: It is given that on average 7 customers arrived in a automobile service facility per hour.

Q: In a study of 206,023 cell phone users, it was found that 32 developed cancer of the brain or…

A:

Q: The Hawkins Company randomly samples 10 items from every large batch before the batch is packaged…

A: Introduction: Denote X as the random variable of interest here, which is the number of defective…

Q: Create a probability tree describing this situation.

A: Solution: Given: The probability that an employee has been at the company five or more years is 0.74…

Q: A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan…

A:

Q: A survey showed that 81% of adults need correction (eyeglasses, contacts, surgery, etc.) for their…

A: Obtain the probability that no more than 1 of them needs correction for their eyesight. The…

Q: A survey showed that 79% of adults need correction (eyeglasses, contacts, surgery, etc.) for their…

A: Let p be the probability that an adult needs eyesight correction. Given that p = 0.79 Let X denote…

Q: In the past few years, outsourcing overseas has become more frequently used than ever before by U.S.…

A: Given that outsourcing overseas has become more frequently used than ever before by U.S. companies.…

Q: If a car agency sells 50% of its inventory of a certain foreign car equipped with an airbag, find a…

A: P (X = x) = P(x) = nCx Px (1-P)n-x, x = 0, 1, 2,

Q: A Company researcher has been given the task of collecting information about all employees within…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: The 2010 census shows that 6% of the American population are at least 75 years of age. To test a…

A: From the provided information, The 2010 census shows that 6% of the American population are at least…

Q: It is known that only 25% of college football players are considered as strong candidates for the…

A:

Q: It is known that 60% of customers will need additional maintenance on their vehicle when coming in…

A: We have given that  Sample size n =50 Sample proportion p^=60%=0.60

Q: It is known that the customers of a hotel are 0.68 percent satisfied with the hotel. Accordingly,…

A:

Q: A certain study conducted in 2000 reported that reported 71.3% of men between the ages of 45 and 54…

A: Given,population proportion(p)=0.713

Q: A random sample of 88 U.S. 11th-12th graders was selected.  The two-way table summarizes the gender…

A: Given A random sample of 88 U.S. 11th-12th graders was selected.  The two-way table summarizes the…

Q: The Hawkins Company randomly samples 10 items from every large batch before the batch is packaged…

A:

Q: A survey showed that 84​% of adults need correction​ (eyeglasses, contacts,​ surgery, etc.) for…

A: The density function of binomial distribution is:

Q: An institute reported that ​70% of its members indicate that lack of ethical culture within…

A: Given Data population proportion,p = 0.7 sample size n = 100

Q: A survey conducted by a food company in Flanders indicated that 28% of strawberry buyers could…

A: Hey, since there are multiple subparts posted, we will answer the first three subparts. If you want…

Q: The center for the study of american electorate indicated that 64% of the voting- age voters cast…

A: Binomial Distribution A Binomial is a type of distribution which has two possible outcomes. i.e.,…

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.