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: Twenty-three percent of U.S. employees who are late for work blame oversleeping. You randomly select…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: There are 7 black ball and 3 red ball in the bag. 10 student queue up and randomly draw one ball one…

A: From the given information,  There are 7 black ball and 3 red ball in the bag. Total balls=7+3=10 10…

Q: What is the probability of drawing a red or blue marble out of a bowl with 10 red, 6 blue, 9 green?

A: Given that,no.of red marbles=10no.of blue marbles=6no.of green marbles=9Total no.of marbles=25

Q: Two test parts are mixed in with a box of 25 good parts. Probability of randomly selecting one of…

A: We have given a box of 25 good parts.Two test parts mixed with 25 good parts inside the boxSo,Total…

Q: If 14% of active duty soldiers in the U.S. Army are women, find the probability that if four…

A: Let X represent the random variable   n=4 p=0.14   X~ Binomial (4, 0.14)

Q: The weather forecastbfor the next day was 90% chance of rain. On the next day the skies were clear…

A: We can't say that the forecast was wrong. Because out of 100 there is 90 % chance that there will be…

Q: If a typist makes an average of three errors for every hour, what is the probability that he will…

A:

Q: A box contains 23 good parts and 8 bad parts. If two parts are drawn at random from the box with…

A: 23 good 8 bad __________ 31 total   Select two at random without replacement.

Q: In a large population, 55 % of the people have been vaccinated. If 3 people are randomly selected,…

A: Probability that people have been vaccinated = 55% = 0.55 Sample size, n = 3

Q: A poll is given, showing 65% are in favor of a new building project. If 9 people are chosen at…

A:

Q: What is the probability of randomly selecting a 3-children family with two girls?

A: We will first list all possible outcomes in the sample space, then we will use following definition…

Q: A 6 sided die is rolled , the set of equally likely outcomes is {1,2,3,4,5,6}. Find the probability…

A: Note that all the possible outcomes are less than 12. So we can get less than 12 in 6 ways. And…

Q: When spinning a spinner, there is an equal chance of landing on orange, green, yellow, red, and…

A: Answer:

Q: A government agency has 200 employees. The table below collects data on the marital status of the…

A:

Q: According to Forbes, there are currently 2,153 billionaires in the US. A professor studying wealth…

A: The mean difference between the two sample tested whether there is any significance difference…

Q: You have two categories of friends on social network (of your choice), namely friends and family.…

A: Given:- total contacts  = 346 family members = 92 female family members = half of family members…

Q: 4. Assume that 13% of people are left-handed. If we select 10 people at random, what is the…

A: There are different type of discrete distributions, some of them are binomial, Bernoulli, Poisson,…

Q: A box contains 20 white balls and 10 black balls. 8 balls are drawn at random one after another…

A: Given;a box contains 20 white balls and 10 black balls. and 8 balls are drawn at randomone after…

Q: One personality test available on the World Wide Web has a subsection designed to assess the…

A: Given data Hypothesized mean = 142 Population Standard deviation = 25 Sample size n = 100…

Q: There are 10 yellow marbles, 12 red marbles and 8 white marbles in a box.  If one marble is…

A: Answer: From the given data, Number of yellow marbles in the box = 10 Number of red marbles in the…

Q: A recent study of cardiovascular risk factors reports that 30% of adults meet the criteria for…

A:

Q: A survey of American women who were asked to name their favorite color yielded the following…

A: Find the probability that a randomly selected participants favorite color is yellow or black: It is…

Q: Suppose a class has 30 students, 13 male and 17 female. What is the probability that if a teacher…

A: It is given that the class consists of 30 students of which 13 are male and 17 are female. Teacher…

Q: A study was done by Our World in Data that looks at home long people spend each day on different…

A: The clam is that average time French people spend eating and drinking is actually more than 133…

Q: The Faculty of Information Technology has 20 lecturers. Students gave 15 of them positive feedback,…

A:

Q: State Is a Smoker Is not a Smoker Kentucky 47 176 Indiana 32 134 Ohio 39 182 Totals 118…

A: Provided data is, State Is a smoker Is a not smoker Kentucky 47 176 Indiana 32…

Q: According to the National Center for Health Statistics in Vital Statistics of the US, there is…

A: In this case, each of the individuals of aged 20 has the only option of "being alive at the age of…

Q: A students' council with 22 members must select 3 students to help run a fundraiser. This is to be…

A: Given data A students council with 22 members must select 3 students  to help run a fund raiser.…

Q: In an exam, there are 10 multiple select questions. In each multiple select question (more than one…

A: During 17th century the concept of probability originated as 'theory of games and chances'. The…

Q: Each job opening on average attracted 250 resumes. You know the job market improved next year which…

A: The question is about hypothesis testing.Given :Population mean of attracted resumes (  ) = 250Total…

Q: 63% of all students at a college still need to take another math class. If 50 students are randomly…

A: I sent 3 questions  to answer, each question has 3 parts, only one part in each question was correct…

Q: In 2001, the Gallup poll found that 81% of American adults believed that there was a conspiracy in…

A: Given that, x=634,n=1039 The sample proportion is,

Q: HI! HELP ME WITH THIS PLEASE. THANK YOU VERY MUCH!   A study of an ant colony over a certain area…

A:

Q: Suppose that if an adult falls in the bottom 5% of the distribution of the amount of blood of…

A: Note: Hi there! Thank you for posting the question. Unfortunately your question has missing…

Q: UCLA conducted a survey of more than 263,000 college freshmen from 385 colleges in fall 2005. The…

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

Q: assume that when adults with smart phones are randomly selected 58% use them in meetings or classes…

A: This is a Binomial Distribution Problem, therefore we can use the formula:…

Q: Out of 39 men and 26 women what's the probability of randomly choosing a woman?

A:

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.