The salary for workers at a company are normally distributed with a mean of $60,000 and a standard deviation of $9,000. A random sample of 36 employees was taken. Find the probability that the average is less than $56,000
Q: In a recent study, the Centers for Disease Control and Prevention reported that the diastolic blood…
A: Solution: Let X be the diastolic blood pressure of adult men. From the given information, X follows…
Q: A newsvendor wants to achieve a 0.975 in-stock probability. Demand is normallydistributed with a…
A: Introduction: A continuous probability distribution that is symmetrical on both sides of the mean is…
Q: A manufacturer knows that their items have a normally distributed length, with a mean of 13.5…
A:
Q: The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard…
A:
Q: In examining the invoices issued by a company, an auditor finds that the dollar amounts of invoices…
A:
Q: The average number of acres burned by forest and range fires in a large New Mexico county is 4,300…
A:
Q: 14. The golf scores for a school team were normally distributed with a mean of 68 and a standard…
A:
Q: In a study of work patterns in one population, the mean weekly family time devoted to child care is…
A:
Q: Suppose the grades in a mathematics class are Normally distributed with a mean of 75 and a standard…
A: Introduction :- Here the grades in a mathematics class are Normally distributed with a mean of 75…
Q: A set of final examination grades in an introductory statistics course is normally distributed,…
A: Let "X" be the final examination grades in an introductory statistics course. Find z-value: Note…
Q: If the mean height of a population of students is 68 inches with standard deviation 3 inches, what…
A: Given that The mean height of a population of students is 68 inches with standard deviation 3…
Q: The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard…
A:
Q: The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student…
A: 1000 0.6 600 1000000 600000 1200 0.3 360 1440000 432000 1500 0.1 150 2250000 225000
Q: Assume that the heights of adult puffins are normally distributed, with a mean of μ=μ= 15.9 inches…
A: Obtain the probability of obtaining a sample mean height less than 14.8 inches. The probability of…
Q: In a study of work patterns, data from 669 subjects were collected. For the time spent in child…
A: We have given that, Let X be the random variable from normal distribution with mean (μ) = 23.08,…
Q: Water use per person is reported as 70 gallons per week, with a standard deviation of 10 gallons If…
A: Given that, μ=70,σ=10,n=25 (a) The probability of their sample mean being greater than 75 gallons…
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: The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard…
A: Provided information is ; Let X be the monthly utility bill mean(μ) = 100 standard deviation(σ)=15…
Q: A set of final examination grades in an introductory statistics course is normally distributed,…
A: Given that, A set of final examination grades in an introductory statistics course is normally…
Q: A manufacturer knows that their items have a normally distributed length, with a mean of 9.6 inches,…
A: Given : Let X be a r.v X : Length of items (in inches) Mean (μ) = 9.6 S.D (σ) = 1.8
Q: At a customer service call center for a large company, the number of calls received per hour is…
A:
Q: The number of people in a department store is normally distributed with a mean of 85 and a standard…
A: We have to find the solution for the given problem.
Q: In a recent year, grade 7 Maryland State public school students taking a mathematics assessment test…
A: In a recent year, grade 7 Maryland State public school students taking a mathematics assessment test…
Q: Traveling between University of Santo Tomas and Rizal Park, Manila via shuttle bus takes, on…
A: Given that, μ=28,σ=5 and n=40 The mean and standard deviation of the sample mean is,
Q: Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 56…
A: From the provided information, Mean (µ) = 56 Standard deviation (σ) = 3.2 Let X be a random variable…
Q: Rivers Casino did an audit of all of their blackjack tables and found that the amount of money…
A: According to the provided information, μ=$6000σ=$200
Q: Assume the average height for all American women is 64 inches with a standard deviation of 2 inches.…
A:
Q: An electrical company claims that an average life of bulbs it manufactures is 1200 hours with a…
A: Given that : μ= 1200 hour ? = 250 hours n = 100 By using the central limit theorem we solve this…
Q: A manufacturer knows that their items have a normally distributed length, with a mean of 13 inches,…
A:
Q: The mean gas mileage for a hybrid car is 56 miles per gallon. Suppose that the gasoline mileage is…
A: It is given that the gas mileage for a hybrid car is normally distributed mean 56 and standard…
Q: The probability is 5% that a student taking the test scores higher than
A: Let X denote the scores of final examination in an introductory statistics course. Given that X…
Q: In a given year, the average annual salary of a cricket player was $205 000, with a standard…
A: The probability that the sample mean will be less than $210,000 is,…
Q: What is the probability that the workers received a salary higher than or equal to ₱575 per day?
A: According to the study, the mean salary of the workers in Metro Manila is ₱550 per day with a…
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: The final score for a mathematics exam is normally distributed, with an average score (µ) of 57 and…
A: GivenMean(μ)=57standard deviation(σ)=9.25
Q: Traveling between University of Santo Tomas and Rizal Park, Manila via shuttle bus takes, on…
A: Let us denote: X=time to travel between University of Santo Tomas and Rizal ParkGiven that X follows…
Q: A manufacturer knows that their items have a normally distributed length, with a mean of 11 inches,…
A: Given : sample mean = 11 standard deviation of samples=1.722=0.3624412178…
Q: the breaking of a particular rope is normally distributed, with the mean of 350 lbs. and a standard…
A:
Q: The heights of 18-year-old men are approximately normally distributed with a mean of 68 inches and a…
A:
Q: If a gambler places a bet on the number 7 in roulette, he or she has a 1/38 probability of…
A:
Q: According to the US energy administration, the mean monthly household electric bill in the united…
A:
Q: In a recent year, grade 7 Maryland State public school students taking a mathematics assessment test…
A: We have given that, Let X be the random variable from normal distribution with mean (μ) = 230 and…
Q: The final exam scores in a Mathematics class were normally distributed with a mean of 75 and a…
A: As per our guidelines we are suppose to answer only one question. Given,mean(μ)=75standard…
Q: Traveling between University of Santo Tomas and Rizal Park, Manila via shuttle bus takes, on…
A: Solution: Let X be the transport time. From the given information, X has mean µ=28 minutes and a…
Q: In recent years, the average movie ticket cost $7.89. In a random sample of 50 movie tickets from…
A: From the provided information, Mean (µ) = $7.89 Population standard deviation (σ) = $1.39 X~N (7.89,…
Q: The weights of college football players are normally distributed with a mean of 191 pounds and a…
A: Given, Mean = 191 Standard deviation = 49
Q: Suppose that the lifetimes of light bulbs are approximately normally distributed, with a mean of 57…
A: Note- Since you have posted a question with multiple sub-parts, we will solve the first three…
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: According to AAA, the price of a gallon of regular, unleaded gas across gas stations in Ohio is…
A: According to AAA, the price of a gallon of regular, unleaded gas across gas stations in Ohio is…
Q: The heights of 18 year old men are normally distributed with a mean of 67 inches and a standard…
A: Given distribution is normally distributed with mean 67 and standard deviation 3 x~N(μ=67, σ=3)
The salary for workers at a company are
Find the probability that the average is less than $56,000
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images