According to the June 2004 Readers' Digest article "Only in America," the average amount that a 17-year-old spends on his or her high school prom is $650 Assume that the amounts spent are normally distributed with a standard deviation of $17. Find the probability that the mean cost to attend a high school prom for 22 randomly selected high school 17-year-olds is between $551 and $696.

Q: According to a survey, the average height of NBA players is 78 in. with a standard deviation of 7…

A: We have given that,  X is random variable are normally distributed with average or mean (mu) = 78…

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

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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: what is the probability that the sample mean will be between 350,000 and 365,000?

A: Given that Sample size n = 100 Population mean = 345800 Population SD = 90000

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A: Given,Mean μ=479Standard deviation=σ=41a)P(X<451)=PX-μσ<451-μσ    =PZ<451-47941…

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

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Q: The average public high school has 468 students with a standard deviation of 87. If a public school…

A: Given, mean=μ=468 and standard deviation=σ=87.

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A: It is given that the mean and standard deviation are 2,716 and 72.8, respectively. The sample size n…

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

A: GivenMean(μ)=120standard deviation(σ)=20

Q: According to the May 16,2017 report by Pew Research, 45% of US adults say solar energy is very…

A: Given data: p = .45 Sample size (n) = 160

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

Q: According to the study, the average number of hours that the student spent studying per week in the…

A: From the provided information, Mean (µ) = 56 hours Standard deviation (σ) = 14 hours X~N (56, 14)

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

A: Define the Random Variables, Xi : Spending of i th 17 years old Given, Xi ~ N( 650,1782) i…

Q: Suppose the average speeds of passenger trains traveling from Newark, New Jersey, to Philadelphia,…

A: Solution: a. Let X-bar be the average speed of passenger. From the given information, X-bar follows…

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A:

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

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Q: In a certain barangay, the Local Government Unit (LGU) distributes "ayuda" benefits to each family…

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

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

A: Given information: μ=631, σ=166 n = 30 a) x1 = 550 x2 = 700 By applying normal distribution:-…

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

Q: The port of South Louisiana, located along 54 miles of the Mississippi River between New Orleans and…

A: GivenMean(μ)=4.5standard deviation(σ)=0.82

Q: A company's mean salary is $65,000 with a standard deviation of $6,000. What is the probability that…

A: P(0<Z<2.5)=0.4938 P(0<Z<0.83)=0.2967

Q: rice of a single-family house in the U.S. is $235,500. you randomly select 12 single family houses.…

A: the average sales price of a single-family house in the U.S. is $235,500. you randomly select 12…

Q: The average per capita spending on health care in the USA is 5274 USD. If the standard deviation is…

A: Given,mean(μ)=5274standard deviation(σ)=600

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

A:

Q: Coronary bypass surgery: The Agency for Healthcare Research and Quality reported that 53% of people…

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Q: According to the 2019 National Apartment List Rent Report, the average two-bedroom apartment rent in…

A: Given that, Mean = 1460 Standard deviation = 100 Sample size = 64

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: In a recent study, the Centers for Disease Control and Prevention reported that the diastolic blood…

A: given that mean(μ)= 80.5 standard deviation (σ) = 9.9

Q: According to the American Time Use Survey results released by the Bureau of Labor Statistics on June…

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

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Q: Most graduate schools of business require applicants for admission to take the Graduate Management…

A: Given:  mean =527 standard deviation = 112 Let the scores of GMAT be X Scores on the GMAT are…

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Q: Most graduate schools of business require applicants for admission to take the graduate management…

A:

Q: The reading speed of second grade students in a large city is approximately​ normal, with a mean of…

A: Solution: Let X be the reading speed of second grade students in a large city. From the given…

Q: The port of South Louisiana, located along 54 miles of the Mississippi River between NewOrleans and…

A: Normal Distribution: A continuous random variable X is said to follow Normal distribution with…

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: A book publisher claims that its mean book length is 250 pages with a standard deviation of 70…

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

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.