School Enrollment Of all 3- to 5-year old children, 56% are enrolled in school. If a sample of 500 such children is randomly selected, find the probability that at least 253 will be enrolled in school. Round the final answer to at least 4 decimal places and round intermediate z-value calculations to 2 decimal places. P(X ≥ 253)=

Q: In a certain village sports club, 36 % of members play football, 32 % of members play cricket, and…

A: We have given that,  Probability of members play football P(F) = 36%=0.36, probability member play…

Q: mong the population of professional snowboarders preparing for the Olympics Slopestyle event,…

A: The population proportion of the athletes that can land a 1260 degree spin consistently (p) = 0.65

Q: School Enrollment Of all  3 - to  5 -year old children,  56%  are enrolled in school. If a sample…

A: Given thatp = 56% = 0.56n = 500

Q: a. Find the probability that the laboratory will falsely assume the absence of COVID 19 virus in the…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Based on a poll, 40% of adults believe in reincarnation. Assume that 8 adults are randomly selected,…

A: Given : Let X : No. of adults believe in reincarnation p=0.40 n=8

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A: From the given information, Based on a​ poll, 60​% of adults believe in reincarnation. . Assume that…

Q: X   z score     %f1    -2.13        3%2   -1.66       5%3  -1.19       10%4  -0.71       15%5  -0.24…

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

Q: A manufacturing plant that employs 50 workers produces roughly 100 cell phones in an hour. At this…

A:

Q: A golfer claims that 74​% of the​ time, he will score less than 90 on the golf course he normally…

A: Here, p = 0.74 and n = 10.

Q: Selected Technologies According to recent surveys, 60%  of households have personal computers. If a…

A:

Q: family runs a robotic vacuum cleaner over a period of one year, is given as 0 < x < 1, f(x) = {2 –…

A: Solution

Q: raph of the discrele probability to the right represents the number of live births mother 47 to 52…

A: From the given information we find the solution.

Q: At an airport, flights arrive on-time 92% of the time. Suppose 5000 flights are randomly selected.…

A: Given information: At an airport, flights arrive on-time 92% of the time. Suppose 5000 flights are…

Q: According to recent research, 34% of Americans have less than $450 in the bank for an emergency. Let…

A: Given n=91 P=0.34

Q: A political candidate estimates that 30% of the voters in her party favor her proposed tax reform…

A:

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A: Given : rate (λ) = 6 per hour For 90 minuets period  λ=9  X follows Poisson distribution. Formula :…

Q: A survey of all medium- and large-sized corporations showed that their employees. Let p be the…

A: Given that p=0.65 and n=80

Q: You are riding from Ahmedabad to Gandhinagar on a Sunday morning. Your friend told you that on an…

A: Introduction to Poisson distribution: A random variable X is said to have a Poisson distribution…

Q: (a) Find the probability that a randomly selected toothbrush (of this type) has a lifespan of more…

A: Solution The given distribution is a continuous probability distribution function.

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

A:

Q: Seventy percent of all vehicles examined at a certain emissions inspection station pass the…

A: Probability is the measure of likelihood of an event. It takes the positive value and it can't take…

Q: A combustion system has two burners, each with its own fuel inlet with its own shut-off valve. The…

A:

Q: A shipment of 27 toys is returned if 7 are checked for flaws and at least 5 are found to have flaws.…

A: Given: Total number of toys in the shipment (N) = 27 Number of toys that have flaws in the shipment…

Q: 19. In a recent year, there were 2,515,458 deaths, and 787,650 of them were due to cardiovascular…

A: Given: Number of deaths = 2515458 Number of deaths due to cardiovascular disease = 787650 The cause…

Q: Single Americans In a recent year, about  22%  of Americans  16  years and older are single. What…

A: It is given that n=210 and p=0.22.

Q: a. Exactly 20 of them survive their first year of life. ? b. At most 19 of them survive their…

A: Given Data Probability of success,p = 0.64 Probability of failure,q=(1- 0.64 )= 0.36…

Q: A number of customers arrive at a cafeteria during lunch hour at an average rate of 0.025 per…

A: Reviewing information, X: Average rate of arrival of customers= 0.025 per second

Q: Seventy percent of adults favor some kind of government control on the prices of medicines. Assume…

A: Givenpopulation proportion(p)=70%=0.7sample size(n)=400Mean(μp^)=p=0.7standard…

Q: On a typical Saturday night at a local bar in San Diego, about 62% of people order a drink that has…

A:

Q: a) Find the probability that at least 0.175 of a random sample of 2,596 US adults respond…

A: It is given that Sample size n = 2596 And sample proportion p̂ follows N(0.17, 0.007), then Z = (p̂…

Q: A cable company advertises short wait times for customer service calls. The graph shows the wait…

A: Given: The graph of the wait times (in seconds) for a sample of customers service calls is as…

Q: A computer laboratory in a school has 33 computers. Each of the 33 com- puters has 90% reliability.…

A: GivenNumber of computers in school = n = 33Probability of computer working = p = 0.9 1) Let X be…

Q: a) Find the probability that at least 0.175 of a random sample of 2,596 US adults respond…

A: It is given that Sample size n = 2596 Sample proportion follows N(mean = 0.17 and SD = 0.007), then…

Q: In an online fitness training platform, users can register with an account. During registration, a…

A: P ( male/opted ) = ?

Q: In an urban area, 31% of dog owners pay for someone to walk their dogs. Morgan asks a random sample…

A: We have to find correct answer.

Q: The distributor of a machine for cytogenics has developed a new model. The company estimates that…

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Q: A survey of all medium- and large-sized Corporation show that 67% of them offer retirement plans to…

A: From the provided information, A survey of all medium- and large-sized Corporation show that 67% of…

Q: A survey of all medium- and large-sized corporations show that 66% of them offer retirement plans to…

A: Solution: From the given information, p=0.66 and n=80.

Q: Wyatt buys a bag of cookies that contains 7 chocolate chip cookies, 8 peanut butter cookies, 7 sugar…

A: Given that: Bag of cookies contains 7 chocolate chip cookies, 8 peanut butter cookies, 7 sugar…

Q: Six percent of computer chips produced by Cheapo Chips are defective. Each month a random sample of…

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Q: a) An oil company conducts a geological study that indicates that an exploratory oil well should…

A: For Part a] : Provided information is ; X is geometric random variable, since we are only looking…

Q: An appliance store sells 20 refrigerators each week. Ten percent of all purchasers of a refrigerator…

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Q: a) Find the probability that at least 0.175 of a random sample of 2,596 US adults respond…

A: It is given that Sample size n = 2596 Phat(p̂) follows N(0.17, 0.007), then Z = (p̂ - 0.17)/0.007…

Q: Assume that a report claims that 44% of all ice cream-machines maintain a too high temperature…

A: Let X be the number of persons possessing the given attribute in a sample of size 'n'. Let p denotes…

Q: An advertising campaign for a new product is targeted to make 20% of the adult population in a…

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Q: Parking Lot Construction The mayor of a small town estimates that 37% of the residents in the town…

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Q: . Research shows that 17% of children are absent from school on at least five days during winter…

A: We have given that  Sample size n= 55 Success of probability = 0.17 X~binomial ( n,p)

Q: A life insurance salesman sells on the average 3 life insurance policies per week. Use Poisson's law…

A: Solution-: We have given that a life insurance salesman sells on average 3 life insurance policies…

Q: In an urban area, 31% of dog owners pay for someone to walk their dogs. Morgan asks a random sample…

A: In an urban area, 31% of dog owners pay for someone to walk their dogs. Morgan asks a random sample…

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.