The average employee in the U.S. spends m = 23 minutes commuting to work each day. Assume that the distribution of commute times is normal with a standard deviation of s = 8 minutes a.         What proportion of U.S. employees spends less than 15 minutes a day commuting? b.         What is the probability of randomly selecting an employee who spends more than 35              minutes commuting each day?

Q: New York City is the most expensive city in the US for lodging. The mean hotel room rate is $204 per…

A: given datanormal distributionμ = 204σ = 55P(x>225) = ?

Q: Medical research has concluded that people experience a common cold roughly two times per year.…

A: The mean of the normal distribution, The standard deviation of the distribution,

Q: The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation…

A: Refer Standard normal table/Z-table to find the probability of z=2.80.

Q: The monthly utility bills in a city are normally distributed with a mean of $121 and a standard…

A: Given : The monthly utility bills in a city are normally distributed with a mean of $121 and a…

Q: The average annual salary for all U.S. teachers is $47,750. Assume that the distribution is normal…

A: GivenMean(μ)=47750standard deviation(σ)=5680

Q: hotel in a European city follows a normal distribution with a mean of 170 euros and a standard…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of 97.8 and a standard…

A: Given a mean of 97.8 and a standard deviation of 23

Q: Tiger Woods hits an average driver 287.2 yards with a standard deviation of 24.6 yards. What is the…

A: The probability value is calculate by means of standard normal variate with the random variable,…

Q: A Cuckoo Maran hen lays a mean 300 eggs per year with a standard deviation of 12.7 eggs. The…

A:

Q: The average age of vehicles registered in the United States is 96 months. Assume the population is…

A: Given that: X is normally Distributed with mean µ = 96.0 and standard deviation σ = 15.0 By using…

Q: The weekly amount spent by an event management company for travel has approximately a normal…

A: From the provided information, Mean (µ) = $2500 Standard deviation (σ) = $400 Let X be a random…

Q: The Monthly salaries of teachers at Los Angeles Trade Tech are normally distributed with a mean of…

A: Given information: The monthly salaries of teachers at Los Angeles Trade Tech are normally…

Q: Assume that the salaries of elementary school teachers are normally distributed with a mean $35,000…

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: The average sales price of a single-family house in the United States is $235,000. You randomly…

A: Given, Mean sales price of family in US is $2,35,000 Standard deviation is $50,000 I.e.,…

Q: A certain video game has 72% chance of sucess. During summer vacation a person plays 12 games a day.…

A: In question, Given that A certain video game has 72% chance of sucess. During summer vacation a…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 95.9 and a standard…

A: Given: Mean μ = 95.9 Standard deviation σ = 15.6 Formula Used: Z-score: Z = X-μσ

Q: According to the American Red Cross, 11.6% of all Connecticut residents have Type B blood. A random…

A: The question is about discrete probability distributionGiven :Probability of all CT residents have…

Q: The number of automobile accidents per week in Toronto is normally distributed with a mean of 16.3…

A:

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

A:

Q: a. Find the probability of a pregnancy lasting 308 days or longer. b. If the length of pregnancy is…

A: Given Data Population Mean,μ = 269 Population Standard Deviation,σ = 15

Q: Assume the credit card balances of younger college educated employed persons are normally…

A:

Q: The lengths of pregnancies are normally distributed with a mean of 267 days and a standard deviation…

A: Given,mean(μ)=267standard deviation(σ)=15

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

A:

Q: The average number of minutes per week that teenagers spend texting is 250.0. Assume the standard…

A: Normal distribution is a continuous distribution which has many real life applications. Normal curve…

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.