Suppose an actual census showed that 18.4% of the households in California have incomes in excess of $50,000. The probability that the sample proportion will be 0.22 or greater for a random sample of 750 household is:

Q: (d) Would it be unusual if the sample proportion of tax returns for which no tax was paid was less…

A: Given,n=120P=0.326

Q: If the population proportion is 0.90 and a sample of size 64 is taken, which is closest to the…

A: Given: Population proportion (P)=0.90 Sample size (n)=64

Q: (d) What is the probability that a random sample of 50 students spends an average of $1450 to $1600…

A: 73. D Let x¯ is defined as the average on-campus housing cost for a semester at university which…

Q: In a government aid program, the following data is collected. Of the people who attend the program,…

A: We have to find out given probabiity..

Q: In USA, the results of a survey involving the use of sleepwear while travelling were listed as…

A: We have given that the probability of male and female on use of different sleepwear.

Q: In a recent survey of a random sample of 437 California residents, 129 said they visited a state…

A: We want to find out the correct answer for given question

Q: A political scientist is analyzing the possible voting outcomes of a proposal. According to polls,…

A: According to the given information, we have The probability that a voter will vote yes is 50% Sample…

Q: - The average number of matches where the football matches of the Galatasaray football team were…

A: See the hand written solution

Q: In a football school, 25 matches per month are played. 15 of the 25 matches played in the past years…

A: Given ,no.of matches (n) =25and P=1525=35X=no.of matches won

Q: What is the percent probability that a family randomly chosen has both a red and a silver car? Round…

A:

Q: The table below displays the results of a survey of 72 people in an office building on whether or…

A:

Q: A fruit retailer complains to a wholesaler that 60 percent of the boxes of apples shipped to the…

A: Given:X: Number of boxes contain rotten applen: Sample size = 15p: Proportion of the boxes of apples…

Q: If one student is randomly chosen from the group, what is the probability that the student chose…

A: Given problem Given that     Homework Housework Outside Employment Recreation Other Total…

Q: Is the following a probability model? What do we call the outcome "green"?   Color…

A: Q.1)  Yes , It is a Probability model  The sum of the all Probabilities Corresponding all events is…

Q: Q3/The Dallas-Fort Worth Airport claims that 80% of their flights are on time. If the claim is…

A: We have given that  n=25 , p=80%=0.80 X~Binomial(n=25,p=0.80)

Q: While working on your Auto-repair Shop, you noticed that the probability of receiving 0, 1, 2, 3 or…

A:

Q: The Cincinnati Enquirer reported that, in the United States, 60% of adults and 82% of youths ages 12…

A: Let X be a random variable following normal distribution with mean μ and variance σ2, i.e.,…

Q: c) Suppose that, on average, telephone calls arrive at large switchboard at the rate of two per…

A:

Q: A survey at a restaurant in small western town yielded the data below: travelers : married 27,…

A: General formula of probability is ,  Probability = Number of favorable outcomesTotal outcomes

Q: Q. A state public health department wishes to investigate the effectiveness of a campaign against…

A:

Q: first- and second-born children of two-children families by gender is shown below. What is the…

A:

Q: Suppose that the true proportion of households with at least one car is T = .80. If a random sample…

A: Assume that π as the true proportion of households with at least one car.

Q: A survey at a restaurant in small western town yielded the data below: Married Single Divorced…

A: See the handwritten solution

Q: Given the table: Gender Yes No Maybe Male 0.097 0.135 0.293 Female 0.165 0.159 0.151 What is the…

A: See the handwritten solution

Q: In the following situation, what sort of probability distribution would the consulting business most…

A: here given  A consulting business has been hired by an insurance company to see if the company has…

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: The proportion of all customers at Pizza Hut who eat on-site is 75 percent. In a sample of 100…

A: Given that  n=100 , p=25%=0.25  , q=1-p=1-0.25=0.75 σp=√(p(1-p)/n)=√((0.25*0.75)/100)…

Q: d. What is the probability that her trip will take exactly 50 minutes?

A: here given ,  The time it takes for Anna to travel between her home and her job is uniformly…

Q: In a class of students, the following data table summarizes the gender of the students and whether…

A: Given:   Female Male Total Has An A 5 7 12 Does Not have A 3 10 13 Total 8 17 25 Basic…

Q: What is the probability that a randomly chosen student is female, given that the student is…

A: Given data is   Female Male  Total Left Handed 100 120 220 Right Handed 150 130 280 Total…

Q: In a national survey college students were asked, "How often do you wear a seat belt when riding in…

A: Here given freuency distribution table for number of student use seatbelt during car driven by…

Q: According to the table below, what is the probability that the age of a student chosen at random…

A:

Q: In the 2010 U.S. Census, one of the questions asked was “How many people live in your household?”…

A: Here the given distribution is discrete. We need probability of no more than 4 living in a randomly…

Q: The following table lists the number of textbook problems X that appear on a Probability and…

A: The required calculations for obtaining mean are made in the following table:

Q: In a probability experiment, 42 out of 70 trials were unsuccessful. a) What is the experimental…

A:

Q: (a) If Tommy has missed a shot, what is the probability that he will score two shots later? (b) In…

A: a ] Here we will make transition probability matrix P : Where Row 1 is representing the…

Q: What is the probability that a female college student from this group chose "housework" as their…

A: What is the probability that a female college student from this group chose "housework" as their…

Q: A university recently surveyed 500 students to determine which new fitness area to offer in its…

A: Required probability is P(spinning room/graduate student)

Q: In a survey of 2500 adults 18 year old and older conducted in 2019 adults 18 years old and older,…

A: The frequency distribution is given by:

Q: For a week, a clothing company tracks the amounts spent by its customers, with the results shown to…

A: Here given grouped frequency distribution of amount spent by customers of clothing company

Q: a. Assuming that the rate of 23.9% is correct, find the probability that 398 or more of the 1482…

A: Given: p = proportion of people has sleepwalked = 0.239 n = Sample size = 1482 As sample size is…

Q: Find the mean of the following probability distribution?

A: Here, we have given the probability distribution of x as below: x 0 1 2 3 4 P(x) 0.0666 0.1178…

Q: (b) If a sample of 10 cups of ice cream is selected, what is the probability that the mean of the…

A: Given that :  x¯ = 670σ=35n=10μx¯ =660

Q: In a certain city, the distribution of the first- and second-born children of two-children families…

A:

Q: The Laurier Company's brand has a market share of 30%. Suppose that 1,000 consumers of the product…

A:

Q: It is known that​ 35% of students change their major in college. In a random sample of 500​…

A:

Q: The results of a survey of 200 adults are shown in the table. 6' or over Under 6 Total Male 14 88…

A: According to the given information, we have   6' or over Under 6' Total Male 14 88 102 Female…

Q: A sample of 2,000 licensed drivers revealed the following number of speeding violations a. What is…

A: a) From the table, 18 drivers have exactly 2 violations. Total number of drivers= 2000 So the…

Q: (d) What is the probability that on at least 22 days you walk through Aldrich Park? (e) What is the…

A: Let p be the probability that you walk through Aldrich park on any given day. Given that p = 0.7…

Q: In a sample of college students, 100 live on campus, 60 live with family off campus, and 40 live in…

A: We have given that 100 students live on campus. Number of students live off campus is 60+40=100…

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.