7) Automobile Repair Costs. Automobile repair costs continue to rise with an average 2015 cost of $367 per repair (U.S. News & World Report website). Assume that the cost for an automobile repair is normally distributed with a standard deviation of $88. Answer the following questions about the cost of automobile repairs.   What is the probability that the cost will be more than $450? What is the probability that the cost will be less than $250? What is the probability that the cost will be between $250 and $450?

Q: In an article about the cost of health care, Money magazine reported that a visit to a hospital…

A: (a)   Obtain the probability that the cost will be between $300 and $400   The probability that the…

Q: In an article about the cost of health care, Money magazine reported that a visit to a hospital…

A: The mean of the cost of the sore throat is $328. The standard deviation of the cost of the sore…

Q: 1. The iPhone battery capacity is normally distributed with a mean of 4 years and a standard…

A: 1 year = 12 months Given: μ = 484 years = 48 months σ = 1010 (a) The corresponding z-value…

Q: According to Runzheimer International, a typical business traveler spends an average of $281 per day…

A: We have given that Mean(µ) = 281 Population Standard deviations (σ) = 47 Sample size (n) = 50

Q: Most graduate schools of business require applicants for admission to take the GMAT exam. Suppose…

A: The random variable is score on the GMAT. It follows standard normal distribution. The population…

Q: Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these…

A:

Q: 10. An education finance corporation claims that the average credit card debts carried by…

A:

Q: normally distributed with a mean of 28 ounces and a standard deviation of 1 ounce.  What is the…

A: From the available information, the amounts of boxed cereal are normally distributed with a mean of…

Q: Cititon Forest contains a population of 297 chupacabra, whose masses have a mean of 40.1 kg and a…

A: Given that.   X~N( μ , ?^2 )   μ=40.1  , ?=8.3  , n=103   Z-score =( x - μ )/?

Q: Question * An automotive repair shop has determined that the average service time on an automobile…

A: (a) Given Information :  An automobile repair shop has determined that the average service time on…

Q: The weight of football players is normally distributed with a mean of 180 pounds and a standard…

A:

Q: A road averages 2,115 vehicles per day with a standard deviation of 485 vehicles per day. A traffic…

A:

Q: Based on Aircraft Safety Council of Country PQR, an average of 18 aircraft accidents occurred each…

A: Given,an average aircraft accidents occurred each year is 18so an average aircraft accidents…

Q: Tompkins Associates reports that the mean clear height for a Class A warehouse in the United States…

A:

Q: The American Automobile Association (AAA) reported that families planning to travel over the labor…

A: Given data: Mean = 749 Standard deviation  = 225 To find the given probabilities

Q: According to Runzheimer International, a typical business traveler spends an average of $281 per day…

A: Given,sample size(n)=60mean(μ)=281standard deviation(σ)=47

Q: What is the standard deviation of the number of burglarized houses? What is the probability that…

A: Given : The probability that a house in an unban area will be burglarized is 5% . A sample of 50…

Q: The Jamestown Steel Company manufactures and assembles desks and other office equipment at several…

A: Hypothesis Testing The use of statistics to calculate the likelihood of whether a hypothesis is true…

Q: A recent graduate from a business college is hired by a marketing firm in sales. Her first year's…

A: Given data: Mean = $33500 Standard deviation = $ 2000 To find: Based on the research, what is the…

Q: In its Fuel Economy Guide, the Environmental Protection Agency gives a variety of data on 2016 model…

A: Note: Hey, since there are multiple subparts are posted, we will answer first three subparts for…

Q: 1) The time until recharge for a battery in a smartphone is normally distributed with a mean of 250…

A: a. Consider that the mean and standard deviation of a random variable X are µ and σ, respectively.…

Q: The Economic Policy Institute periodically issues reports on wages of entry level workers. The…

A: a) The probability that a sample of 50 male graduates will provide a sample mean within $0.50 of the…

Q: What is the probability that a randomly selected bag contains fewer than 1125 chocolate​ chips? ​(b)…

A: From provided information, chocolate chip cookie is approximately normally distributed with a mean…

Q: Newborn Elephant Weights Newborn elephant calves usually weigh between 200 and 250 pounds—until…

A: The provided information are: Population meanμ=225Population standard deviationσ=45 Consider, X be…

Q: A study indicates that 18- to 24- year olds spend a mean of 120 minutes watching video on their…

A: Given that, Mean = 120 Standard deviation = 20

Q: The Public Service Student Loan Forgiveness program states that the average amount of student loan…

A:

Q: Power +, Inc. produces AA batteries used in remote-controlled toy cars. The mean life of these…

A: Let X be a random variable with mean μ and standard deviation σ. Then, x¯-μσn follows a standard…

Q: Traveling between two campuses of a university in a city via shuttle bus takes, on average, 28…

A:

Q: What is the standard deviation of this probability distribution

A:

Q: It is believed that the average shoulder height of Furry Manumars is 16 inches, with a standard…

A: Given the mean height of furry Manumars as 16 inches, the standard derivation as 2 inches , sample…

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A: We know that If X follows normal distribution with mean μ and standard deviation σ, then  Z=X-μσ…

Q: a

A: Given data: Mean cost of money magazine is $328, standard deviation of the magazine is $92. To find:…

Q: According to Runzheimer International, a typical business traveler spends an average of $281 per day…

A:

Q: Traveling between two campuses of a university in a city via shuttle bus takes, on average, 28…

A: Given information: Mean μ=28 minutes Standard deviation σ=5 minutes Number of times bus transported…

Q: Runners in a race have a mean finishing time of 91 minutes and a standard deviation of 16 minutes.…

A:

Q: A recent survey taken by Adecco of 1,047 employees found that 28% of them would lay off their bosses…

A: Note: Hey, since multiple subparts are posted, we will answer first three subparts according to our…

Q: The American Automobile Association (AAA) reported that families planning to travel over the labor…

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

Q: The Economic Policy Institute periodically issues reports on wages of entry level workers. The…

A: Obtain the probability that a sample of 50 male graduates will provide a sample mean within $0.50 of…

Q: A report in 2010 indicates that Americans between the ages of 8 and 18 spend an average of μ = 7.5…

A: Given Let X: Americans between the ages of 8 and 18 spend  hours per day using some sort of…

Q: Rosebushes are known to produce rose blooms during their blooming period. A botanist (plant expert)…

A: Given: The researcher (botanists) plans to examine the number of rose blooms during the blooming…

Q: What is the probability that a randomly selected carton has a weight greater than 9.13 ​ounces? ​(b)…

A: Let X denote the weights of ice cream cartons. Given that X follows N(mean = 9, SD = 0.5), then  Z =…

Q: A firm's marketing manager believes that total sales for the firm next year can be modeled using a…

A: Given: x~N(μ,σ)μ=$2,500,000σ=$300,000

Q: The time that a shopper spends in the grocery store is normally distributed, with a mean of 45…

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: A study indicates that 18- to 24- year olds spend a mean of 115 minutes watching video on their…

A:

Q: The Jamestown Steel Company manufactures and assembles desks and other office equipment at several…

A: Given population mean μ=200, population standard deviations σ=16, n=sample size =50, sample mean…

Q: 1. A soft drink machine is regulated to that is discharges an average of 150 mL per cup. If the…

A:

Q: What is the probability that the height of an 18-year-old man selected at random is between 69…

A: Given μ=68σ=3

Q: In an article about the cost of health care, Money magazine reported that a visit to a hospital…

A:

Q: According to the Department of Education, the time college students spend on their cell phones daily…

A: GivenMean(μ)=270standard deviation(σ)=75

Q: The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally…

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

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.