A market research company is interested in the home owership rates across Melbourne suburbs. They survey 253 households in the suburb of Carlton where the true probability of being a home owner for a given household is 0.782. Assume that the home ownership status of each households is independent of others. What is the expected value of the variable X, defined as the number of people who own homes in the sample (round to the nearest number of people).

Q: Suppose you have a population of adult male basketball players and you know their mean height is 190…

A: given data normal distributionμ = 190 cmσ = 7.2 cm

Q: Weights

A: Normal probability plot is one of the technique to assess whether the data follows normal…

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A:

Q: Of all the registered automobiles in Colorado, 10% fail the state emissions test. Nine automobiles…

A: Probability, p =10% Sample size, n = 9

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A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

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A:

Q: A university administrator expects that 25% of students in a core course will receive an A. He looks…

A: Step 1: State the given: population proportion, p = 25% = 0.25sample size, n = 60 Step 2: Recall the…

Q: In a survey of a group of men, the heights in the 20, 29 age group were normally distributed with a…

A:

Q: A research firm conducted a survey to determine the average amount of money consistent smokers spend…

A: We have given that,  Let X be a random variable from normal distribution with mean(μ) = 20 and…

Q: en the current Center of Disease Analytics statistics, the probability of having the flu in our area…

A: event A= having flup(having the flu in our area)=0.10p(A)=0.10P(A')=1-0.10=0.90event B=report…

Q: In an certain species of newt, offspring are born either green or black. Suppose that 45% of these…

A: The mean of the sampling distribution of the sample proportion. The standard deviation of the…

Q: To the right are the probabilities and values associated with five outcomes of an experiment.…

A: The table shows the probabilities and values associated with five outcomes of an experiment.

Q: Ahmed receives a weekly salary of $250, plus an additional $300 for each car sold. Find the mean and…

A: Salary=250 and 300 additional for each car sold. Salary = 250 + x*300  x = number of car sold

Q: A study was conducted by a team of college students for the college research center. From the study,…

A: Given, Mean μ = 230 Standard deviation σ = 19

Q: In a region the energy consumption for a family per month averages 1145 kWh and one standard…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: According to a Harris Interactive survey conducted for World Vision and released in February 2009,…

A:

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A: The given situation follows binomial distribution. The proportion of people born in United States…

Q: builtrite has calculated average weekly daily sales to be 80000 with a standard deviation of 12000.…

A: Mean()=80000standard deviation()=12000 one store manager made a bet with another store manager that…

Q: In a Godiva Chocolate Shop, there are different sizes and weights of boxes of truffles. a. Find the…

A: a. Given: μ=283σ=1.6 The probability that a box of truffles weighs between 283 and 285.4 grams…

Q: A company is considering drilling four oil wells. The probability of success for each well is 0.45,…

A: Solution: Let X be the number of success in  drilling  oil wells.  The probability of  success for…

Q: The estimated annual probability that a woman over the age of 32 dies of lung cancer equals 0.001204…

A:

Q: In an certain species of newt, offspring are born either green or black. Suppose that 60% of these…

A: Given Information: p = 60%  Sample size (n) = 144

Q: Given that the mean weight of schoolchildren's book bags is 17.5 pounds, with a standard variation…

A: We have given that Population mean = 17.5 Standard deviation = 2.2 Sample size n =30

Q: In an certain species of newt, offspring are born either green or black. Suppose that 50% of these…

A: Here sampling distribution of proportion is normal because sample size is too large

Q: The following data represent the number of drivers involved in a fatal crash in 2016 in various…

A: Data about number of fatal crash in 2016 has been provided.Probability needs to be calculated for a…

Q: The average number of pounds of red meat a person consumes each year is 196 with a standard…

A: We are given,μ = 196σ = 22n = 60

Q: An insurance policy to cover damages on a uhaul truck for duration of rental is $900. Based on…

A: Given: Insurance policy cover damages of rental is = $900 The average repair cost is = $1100 Numbers…

Q: A three-bulbed flask contains five particles. What is the probability, to three significant figures,…

A: Let us assume X be the random variable representing the number of particles, out of total 5, in the…

Q: Hanita has purchased the insurance policy from an insurance company to cover the value of hers new…

A: From the provided information, An insurance company to cover the value of hers new car in case if it…

Q: 84 tires in a factory are tested for defectiveness. 12% of tires made in the factory are defective.…

A: From the provided information, Sample size (n) = 84 tires 12% of tires made in the factory are…

Q: A popular art museum in Izmir can accept 1,200 visitors a day. If this amount of traffic is…

A: We have given that  We want to use exponential distribution.  Mean = β Where  λ  = 1/β

Q: During the 2013 regular NBA season, DeAndre Jordan of the Los Angeles Clippers had the highest field…

A: In the given problem we have given that, During the 2013 regular NBA season, DeAndre Jordan of the…

Q: Data from the Bureau of Labor Statistics’ Consumer Expenditure Survey show that annual expenditures…

A: Given information- For the year 2001- Population mean, µ = $235 Population standard deviation, σ =…

Q: The management of Priority Health Club claims that its members lose an average of 10 pounds or more…

A: Given ,           Sample size n=36           Sample mean x=9.2           Standard…

Q: Suppose that the amount of a weekly grocery bill of all households in a metropolitan area is…

A: Mean = 140 Sample standard deviation = 35 Sample size = 49 Using standard normal distribution.

Q: A major application of analytics in marketing is determining customer retention. Suppose that the…

A: Given, The customer leaving for another carrier from one month to the next is 0.07We have to find…

Q: Sean and Evan are college roommates who have part-time jobs as servers in restaurants. The…

A: We have given that For Sean:  Mean(µ1) = 225Standard deviations (σ1) = 25X1 ~ N (µ1, σ1)= N(225, 25)…

Q: use a ti84 device to solve The quality control manager at a computer manufacturing company believes…

A: From given data we have : Population mean is μ=97 Population standard deviation  (variance…

Q: Suppose that we know that 33.8% of the people born in the United States between 1936 and 1951 have…

A:

Q: An online retailer operates two independent warehouses (A & B) where it keeps its inventory. Each…

A: Solution: given that Each warehouse has a .05 probability of experiencing a fire. If a fire is…

Q: The average salary for a civil engineering major is $75,000 with a standard deviation of $10,000. A…

A: Given the average salary for a civil engineering major is $75,000 with standard deviation of…

Q: In 2014 the NY Yankees had a team batting average of u-245 (actually .245 but we'll multiply by f000…

A: