According to the statistics, 13% of cars in the city were at least 12 years old in 2004. Assume that this result holds true for the current population of all cars in the city. Random sample of 500 cars are selected at random. Approximate the probability that 80 to 98 cars are at least 12 years

Q: Assume that when adults are randomly selevted, 21% do not require vision correction Q. If 20 adults…

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Q: Suppose 100 people all toss a hat into a box and then proceed to randomly pick out a hat. What is…

A: Given:  100 people all toss a hat into a box and then proceed to randomly pick out a hat.  It is…

Q: The unemployment rate in a city is 15%. If 6 people from the city are sampled at random, find the…

A: Given problem Given that   The unemployment rate is 15% . If 6 people from the city are sampled at…

Q: assuming that the rate of 27% is correct, find the probability that 433 or more of the 1456 adults…

A: It is assumed that 27% of people have sleepwalked. In a random sample of 1456 adults, 433 have…

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

A:

Q: A survey showed that 75% of adults need correction for their eyesight. If 8 adults are randomly…

A: Given that 75% of adults need correction for their eyesight. There are 8 adults in the study. Let us…

Q: Assume that 20% of people have sleepwalked. Assume that in a random sample of 1495 ​adults, 311 have…

A:

Q: Assume that 32.4​% of people have sleepwalked. Assume that in a random sample of 1517 ​adults, 530…

A: We have to find given probability...

Q: Suppose 58% of politicians are lawyers. If a random sample of size 681 is selected, what is the…

A: It is given that n =681 and p =0.58.

Q: The recent survey conducted in a certain village suggests that 41.26% of all residents are…

A: Solution: Given that the probability that a resident is self-employed is 0.4126 and it is denoted by…

Q: The probability that a randomly selected 4-year-old male salamander will live to be 5 years old is…

A: Given,The probability that a randomly selected 4-year-oldmale salamander will live to be 5 years old…

Q: According to Mars, 24% of M&M plain candies are blue. In a given sample of 100 M&Ms, 27 are found to…

A:

Q: Use normal approximation to find the probability of the indicated number of voters. In this case,…

A: It is given that 176 eligible voters aged 18-24 are randomly selected. While 22% of voters who were…

Q: Assume that 25.6​% of people have sleepwalked. Assume that in a random sample of 1483 ​adults, 423…

A: Given, a) Population proportion = p = 0.256 sample size = n = 1483 sample proportion =

Q: A sample of n =32 is selected from a normal population with M = 60,         σ = 20.  What is the…

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Q: Assuming that o = 20.0, how large a random sample be taken to assert with probability 0.95 that the…

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Q: Find the probability that two random samples, each consisting of 200 voters, indicated a greater…

A: The election return showed that a certain candidate received 65% of the votes.  n1 = 200 n2  =200…

Q: According to a candy​ company, packages of a certain candy contain ​20% orange candies. Find the…

A: Given p=20%=0.20 n=200

Q: 65% of all violent felons in the prison system are repeat offenders. If 45 violent felons are…

A: The binomial probability formula is as follows:

Q: Suppose that a lot of 5000 light bulbs contains 5% defectives. If n = 20 bulbs are randomly sampled…

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Q: A random sample of n = 16 scores is obtained from a normal population with µ = 40 and σ = 8. What is…

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Q: Assume that a survey of 200 randomly selected people showed that 105 will vote in the 2020 General…

A: It is given that 105 out of 200 people showed that they will vote. That it, there are 95 people who…

Q: Students at a certain school were​ surveyed, and it was estimated that 18​% of college students…

A:

Q: Suppose that 20% of all people 16 years of age or older do volunteer work. Further suppose that…

A: Introduction: Denote p̂1 as the sample proportion of women aged 16 years or more who would do…

Q: A survey of all medium- and large-sized corporations showed that 69% of them offer retirement plans…

A: From the provided information, A survey of all medium- and large-sized corporations showed that 69%…

Q: Suppose that a box contains 8 cameras and that 3 of them are defective. A sample of 2 cameras Is…

A: It is given that the box has total 8 camera out of which 3 are defective. A sample of 2 camera is to…

Q: If it is known that the results of the report from the production department of a Garment Industry…

A: Given that n =10 ,p =0.35

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

A:

Q: Suppose that 20% of the subscribers of a cable television company watch the shopping channel at…

A: If an experiment is performed with possible outcomes as either success or  failure and the…

Q: Assume that 35.4% of people have sleepwalked. Assume that in a random sample of 1536 adults, 551…

A: In this question, it has been given that:35.4% of people have sleepwalkedWe have to find the…

Q: Suppose 90% of adult American smokers started smoking before age 21, if a random sample of of 15…

A: (1)   Obtain the probability that exactly 10 Started smoking before age 21.   The probability that…

Q: It is estimated that 55% of the freshmen entering a particular college will graduate from that…

A: Let us assume X=the number of graduates in 4 yearsn=sample size=5p=probability of success= 55%=0.55X…

Q: n applicant is selected at random, what is the probability that he/she passes the academic…

A: Given:     Work Experience standards      yes  No  Total Academic Achievement Standards  yes…

Q: Assume that the number of new visitors to a website in one hour is distributed as a Poisson random…

A: Obtain the probability that in any given hour zero new visitors will arrive at the website The…

Q: A recent survey found that 86% of first-year college students were involved in volunteer work at…

A: The provided information are:Proportion of first-year college students were involved in volunteer…

Q: A survey of all medium- and large-sized corporations showed that 69% of them offer retirement plans…

A: Given: p=0.69

Q: Suppose that six cups of yogurt are selected at random. What is the probability that at least three…

A:

Q: A survey of all medium- and large-sized corporations showed that 65% of them offer retirement plans…

A: The normal distribution is the most useful theoretical distribution for continuous variables.…

Q: uppose that 72% of Veterinary School graduates who take the licensure exam for their state pass the…

A: p =0.72 n = 150 z-critical value at 0.75 = 0.6745

Q: A survey of all medium and large-sized corporations showed that 63% of them offer retirement plans…

A: Given From the information, Let n be the sample size = 50 Let p be the population proportion = 0.63

Q: A sample of 820 adults showed that 31 of them had no credit cards, 178 had one card each, 98 had two…

A: From the sample of 820 adults, 81 had three cards each and (31+178+98+90+342)= 739 had other than…

Q: Assume that 35​% of people have sleepwalked. Assume that in a random sample of 1515 ​adults, 537…

A:

Q: According to the statistics, 22% of cars in the city were at least 12 years old in 2004. Assume…

A:

Q: Based on a survey, when 1009 consumers were asked if they are comfortable with drones delivering…

A: Let x be the number of customers comfortable with the drones is represented as 0 + which follows…

Q: Assume that 38.2​% of people have sleepwalked. Assume that in a random sample of 1540 adults, 629…

A:

Q: Suppose 3% of items manufactured at a facility are defective. A random sample of 600 items are…

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Q: What is the probability that three Poisson random independent variables A,B, C, with parameters 1,…

A:

Q: Suppose 30% of the U.S. population has green eyes. If a random sample of size 1200 U.S. citizens is…

A:

Q: The number of meteors found by a radar system in any 30-second interval under specified conditions…

A: Let 'X' be the no of meters found by a radar system .given , the average meters found in 30…

Q: Suppose that 20% of fruit flies possess a certain gene.  If we randomly select 20 fruit flies, find…

A: Using binomial distribution we find the given probability.

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.