A company takes a random sample of 60 salespeople and measures the yearly average amount of money generated by sales from each salesperson. The overall average amount for the company is $500,000 with a standard deviation of $30,000. a.What is the probability that the average sales amount from the sample is less than $495,000? b. What is the probability that the averag

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A: From the provided information, Mean (µ) = 176000 Standard deviation (σ) = 31000 X~N (176000, 31000)…

Q: The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation…

A: (a)   Obtain the probability that pregnancy will last 307 days or longer. The probability that…

Q: The average credit card debt for college seniors is $3000. If the debt is normally distibuted with a…

A: A) The senior owes at least $1200

Q: The quality control manager of​ Marilyn's biscuits is inspecting a batch of​ chocolate-chip biscuits…

A:

Q: (3) The probability that a truck will be going over the speed limit on I-77 South between Dobson and…

A: ( 3 ) Given that n =5 ,p=0.75

Q: In a Statistics class, the final exam scores were normally distributed with a mean of 63 and a…

A: Mean, μ = 63 and standard deviation,σ = 5

Q: The monthly incomes of an organization follows a normal probability distribution with a mean of…

A: From the provided information, Mean (µ) = $5,000 Standard deviation (σ) = $100 Let X be a random…

Q: 5. According to the Boston Globe in 2012, a typical college student graduated with $27,200 of debt.…

A: The mean is $27,200 and the standard deviation is $25,000.

Q: You randomly select 25 teachers. What is the probability that their mean salary is more than $70000,…

A: Given thatRandomly select 25 teachersPopulation mean salary is 56000Standard deviation 15000To…

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

A:

Q: Consider a gamble with a 40% chance of winning $10 and a 60% chance of losing $10. What is the…

A: Given data: The given chance of winning is P(W)=40%=0.40. The given chance of losing is…

Q: The average daily points for my fantasy baseball team are {4.1, 5.7, 3.8, 4.7, 4.7, 5.5, 4.1, 2.7,…

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

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: The owner of a minor league baseball team pays the nine starting​ players, the​ manager, and two…

A: x (x-xbar)^2 70 16900 100 10000 135 4225 175 625 185 225 190 100 205 25 210 100…

Q: An appliance dealer's website features the mean life expectancy values for major household…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: According to a research​ institution, the average hotel price in a certain year was ​$97.27. Assume…

A:

Q: The owner of a computer repair shop has determined that their daily revenue has mean$7200 and…

A: From the provided information,

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

Q: 1. Create the probability distribution table for X: X outcome a. E[X] = μx b. SD[X]=ox profit æ,$…

A: The life insurance policy for her iguana is for the price of $100 per year.Neveah will receive $4000…

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: The smaller the spread of scores around the arithmetic mean....?

A: The standard deviation is a measure of dispersion. It measures the variability in the data. If the…

Q: According to a certain website, the average daily time spent on social networking by internet users…

A:

Q: The weights of steers in a herd are distributed normally. The standard deviation is 300⁢lbs and the…

A:

Q: A police department reports that the probabilities that 0, 1, 2, and 3 burglaries will be reported…

A:

Q: The average amount of students who ride the bus each year and Wilton Iowa is 60 students. The…

A: Given,   Mean = 60 Standard deviation = 5   The objective is to find the required probabilities.

Q: The average credit card debt for college students is $3262. The debt is normally distributed with a…

A:

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: According to a Sallie Mae survey and credit bureau data, in 2008, college students carried an…

A:

Q: D. What is the mean of the probability distribution E. What is the standard deviation of the…

A: We have to find d...Mean of the probability distribution e... Standard Deviation of distribution

Q: a. Construct a probability distribution below. P(X) b. Calculate the mean, variance, and standard…

A: HERE from given information make probability distribution table and use it for mean and variance…

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: 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: 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: Suppose that the average price for a gallon of gasoline in the United States is $3.77  and in Russia…

A: Let X be the for United States Y for Russia

Q: Business Weekly conducted a survey of graduates from 30 top MBA programs. On the basis of the…

A:

Q: 20152010 Number of people asked 250 400 Number of people who prefer real estate 130 180 The analyst…

A: For 2015 : We have that the sample size is N1=250N1 = 250 , the number of people who prefer real…

Q: A population proportion is 0.61. Suppose a random sample of 655 items is sampled randomly from this…

A:

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

A:

Q: According to the Centers of Disease Control and Prevention (CDC), the aging of the U.S. population…

A: GivenAn average person makes four visits a year to doctor's offices and hospitalsλ=412        i.e.,…

Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…

A: We have given that,  X be the random variable from normal distribution with mean (μ) = 62.6 ,…

Q: The Wall Street Journal reported that 33% of taxpayers with adjusted gross incomes between $30,000…

A: given  μ=16541σ =2097