he American Automobile Association (AAA) reported that families planning to travel over the Labor Day weekend would spend an average of $749 (The Associated Press,August 12, 2012). Assume that the amount spent is normally distributed with a standard deviation of $225. a. What is the probability of family expenses for the weekend being less that $400? b. What is the probability of family expenses for the weekend being $800 or more? c. What is the probability that family expenses for the weekend will be between $500 and $1000?

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

A: Given that.   X~N( μ , ?^2 )   μ= 115    , ?=20   Z-score =( x - μ )/?

Q: What is the probability that a household in Maryland has an annual income of $90,000 or more?

A: Given Data : Population Standard Deviation,σ = 33800

Q: The Bureau of Labor Statistics provides compensation information on and services for various…

A:

Q: A canning company that cans pineapple juice has a machine that automatically fills 16-ounce cans.…

A: Let X denote the amount of fill per can. Given that X follows N(mean = 16, SD = 1), then Z = (X -…

Q: According to the Nielsen Company, the mean number of TV sets in a US household in 2013 was 2.24.…

A:

Q: Toby’s Trucking Company determined that the distance travelled per truck per year is normally…

A:

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

A: Given that, mean, mu=270 Standard deviation, sigma= 75 We know that, Z score=(X-mu)/sigma

Q: According to the National Association of Colleges and Employers, the 2015 average starting salary…

A: A continuous random variable X is said to follow Normal distribution with parameters μ and σ2 if its…

Q: According to an NRF survey conducted by BIGresearch, the average family spends about $237 on…

A: (a)   Obtain the probability that they spend less than $135 on back-to-college electronics.   The…

Q: According to the Department of Education, college students spend an average of 270 minutes per day…

A: The probability that students spent less than 230 minutes on their phone that day is obtained below:…

Q: According to the National Association of Colleges and Employers, the 2015 average starting salary…

A: Let Y denote the new college graduate in business will earn a starting salary Let X denote the new…

Q: According to the National Association of Colleges and Employers, the 2015 average starting salary…

A:

Q: A web site reported in 2018 that 47% of all web traffic comes from laptops and desktops. Based on a…

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 an NRF survey conducted by BIGresearch, the average family spends about $ 229 on…

A:

Q: Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 56…

A: Since you have posted multiple question, we only provide answers of first three subparts . Please…

Q: According to the Nielsen Company, the mean number of TV sets in a U.S. household in 2013 was 2.24…

A: Mean = 2.24 Standard deviation = 1.3 Sample size = 95

Q: A recent CNN News survey reported that 76% of adults think the U.S. pennies should still be made.…

A: (a)   Determine the expected value.   The expected value is obtained below as follows:   Let X…

Q: According to an NRF survey conducted by BIGresearch, the average family spends about $237 on…

A:

Q: 9. Brooke Henderson of the LPGA, who just won her second major last weekend, played a round of golf…

A: GivenMean(μ)=21.4standard deviation(σ)=16.6

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

A: It is given that the mean is 328 and standard deviation is 92.

Q: The Real Estate Group NY reports that the mean monthly rent for a one-bedroom apartment without a…

A: Given : Mean (μ) = 2635      (in $)Standard deviation = 499      (in $)Sample size (n) = 98

Q: ccording to the National Association of Colleges and Employers, the 2015 mean starting salary for…

A:

Q: The CPA Practice Advisor reports that the mean preparation fee for 2017 federal income tax returns…

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

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 Real Estate Group NY reports that the mean monthly rent for a one-bedroom apartment without a…

A: Solution: Given information: n= 100 Sample size μ=$2631 Population mean σ=$500 Population standard…

Q: According to an NRF survey conducted by BIGresearch, the average family spends about $237 on…

A: We have given that the random variable X is normally distributed with mean $237 and standard…

Q: A civil engineer takes a public ride going to his firm. The average time for his trip is 24 minutes,…

A: The mean is μ=24 and the standard deviation σ=3.8 The office coffee time is 8:50 to 9:00 AM. So he…

Q: The annual per caplta consumptlon of bottied water was 31.1 gallons. Assume that the per capita…

A: Given μ=31.1 and σ = 11  a)  P(more than 36) = P(x>36) Px-μσ>36-31.111 Pz>0.44 = 0.328

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 American Automobile Association (AAA) reported that families planning to travel over the Labor…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: According to the June 2004 Readers' Digest article "Only in America," the average amount that a…

A: Given : μ = 650 , σ= 17 and n= 22 By Central Limit Theorem, x̅ follows a Normal distribution with…

Q: Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 57…

A: Given data,μ=57σ=3.5

Q: a

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

Q: According to the National Association of Colleges and Employers, the 2015 mean starting salary for…

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

Q: What is the probability that the jewelry store will have to pay off on its promise?

A:

Q: The Real Estate Group NY reports that the mean monthly rent for a one-bedroomapartment without a…

A: Given : Mean monthly rent , μ =   $2750  standard deviation , σ = $650 Sample size = n  = 100…

Q: the CPA Practice Advisor reports that the mean preparation fee for 2017 federal income tax returns…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

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 average number of acres burned by forest and ange fires in a large New Mexico county is 4,255…

A: HERE GIVEN FOR  NO FO ACRES BURNED BY FOREST  IT IS NORMALLY DISTRIBUTED  MEAN=μ=4255 acres SD=σ=744…

Q: A technical assistance service with electronic equipment has that its service time is normally…

A: Given,mean(μ)=80standard deviation(σ)=25

Q: The mean cost of domestic airfares in the United States rose to an all-time high of $385 per…

A: We have to find given probability.

Q: Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 57…

A: Given, The proportion of light bulbs will last more than 60 hours is obtained as- The required…

Q: c. What is the probability that exactly ten of the 45 luxury cars sold are silver? d. What is the…

A: It is given that n=45 and p=0.191.

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 Real Estate Group NY reports that the mean monthly rent for a one-bedroom apartment without a…

A: Given μ=2788σ=454n=110

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.