Suppose that SAT scores among U.S. college students are normally distributed with a mean of 500 and a standard deviation of 100. What is the probability that a randomly selected individual from this population has an SAT score 600 or less? 0.3173 0.1587 0.8413 0.4207

Q: Traveling between University of Santo Tomas and Rizal Park, Manila via shuttle bus takes, on…

A: Given : Average bus time is: μ=31 minutes Standard deviation: σ=5 minutes The Z-score is calculated…

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: For a population With a mean of 75 and a standard deviation of 12, what is the probability that a…

A:

Q: Traveling between two campuses of a university in a city via shuttle bus takes, on average, 31…

A: P(X>30)=1-Pz<30-311045=1-P(z<-0.67)=1-0.2514=0.7486

Q: Salaries at a large corporation are normally distributed with a mean of $45,000 and a standard…

A: The normal distribution shows the probability value using the standard score or raw score. It is…

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: Assume that the traffic to the web site of Smiley’s People, Inc., which sells customized T-shirts,…

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

Q: Assume that the traffic to the web site of Smiley’s People, Inc., which sells customized T-shirts,…

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

Q: The monthly utility bills in a city are normally​ distributed, with a mean of $100 and a standard…

A:

Q: A report announced that the median sales price of new houses sold one year was $211,000​, and the…

A: Sample mean will also follow normal distribution with parameters,

Q: Assume that the traffic to the web site of Smiley’s People, Inc., which sells customized T-shirts,…

A: Note: Please repost part d as i can answer only 3 subparts as per my policy. Given data,Mean μ=4.56…

Q: The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard…

A:

Q: The reading speed of second grade students is approximately normal, with a mean 83 WPM and a…

A: Given,   Mean = 83 Standard deviation = 11

Q: Traveling between two campuses of a university in a city via shuttle bus takes, on average, 28…

A: P(X<30)=Pz<30-28540=P(z<2.53)=0.9943

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

A: we are suppose to answer three sub parts .

Q: Suppose math scores on the SAT are normally distributed with a mean of 500 and a standard deviation…

A:

Q: Suppose that during any hour in a large department store, the average number of shoppers is 448,…

A: Given:

Q: The entrance test scores for SHS in a certain school has a mean of 85 and a standard deviation of…

A:

Q: Suppose that the annual household income in a small Midwestern community is normally distributed…

A: Given : X ~ Nμ, σ mean, μ = $55000 S.D, σ = 4500 a. P(household will have an income between $50000…

Q: The starting salaries of individuals with an MBA degree are normally distributed with a mean of…

A:

Q: Assume that the traffic to the web site of Smiley’s People, Inc., which sells customized T-shirts,…

A: Givenmean(μ) = 4.44 millionsstandard deviation(σ) = 720000 = 0.72 millions

Q: A population has a standard deviation of 16. If a sample of size 64 is selected from this…

A: Given: Population standard deviation = sigma = 16 n = 64 P( sample mean within 2 units from…

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: For a normally distributed population with a mean of 35 and a standard deviation of 7.5, if a sample…

A:

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: The monthly utility bills in a city are normally​ distributed, with a mean of ​$100 and a standard…

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 professor at a university gives her large class an examination and finds that the scores follow…

A:

Q: The grades of a statistics midterm are normally distributed with a mean of 79 and a standard…

A: Normal distributionμ=79σ=3.5pgrade between74 and 80=?

Q: For a population with a mean of 100 and standard deviation of 16, what is the probability that a…

A: The central limit theorem states if the sample size (n) is large (greater than or equal to 30), then…

Q: For a normally distributed population with a mean of 35 and a standard deviation of 7.5, if a sample…

A: Solution: We are given:

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: The monthly utility bills in a city are normally​ distributed, with a mean of $100 and a standard…

A:

Q: Suppose your customers' incomes are normally distributed with a mean of $37,500 with a standard…

A:

Q: Ten years after graduation, the salaries of Heriot-Watt University graduates are Normally…

A: Given that.   X~N( μ , ?^2 )   μ=55000    , ?=11000   Z-score =( x - μ )/?

Q: Assuming that student incomes from employment in industry during the day are normally distributed…

A:

Q: In a biomedical research study, it was determined that the survival time, in weeks, of an animal…

A:

Q: The monthly utility bills in a city are normally​ distributed, with a mean of ​$100 and a standard…

A:

Q: 3. Suppose that the IQ scores of Grade 11 students of OSFI is normally distributed with a mean of…

A:

Q: Suppose the tires on your car have an average life expectancy of 60,000 miles, with a standard…

A:

Q: A set of final examination grades in an introductory statistics course is normally​ distributed,…

A: Here, µ = 72, σ = 9.

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

A: From the provided information, Mean (µ) = 57 Standard deviation (σ) = 3.5 Let X be a random variable…

Q: it was determined that the survival time, in weeks, of an animal subjected to a certain exposure of…

A:

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: 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=31 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: "Chá. Traveling between University of Santo Tomas and Rizal Park, Manila via shuttle bus takes, on…

A: Suppose, X be the time takes a shuttle bus. Assume that, X follows Normal distribution with average…

Q: For a normally distributed population with a mean of 35 and a standard deviation of 7.5, if a sample…

A: Given dataMean = 35Standard deviation = 7.5Sample size (n) = 40probability that the sample mean will…

Q: Suppose that IQ scores of Grade 11 students of Abuyog Academy is normally distributed with a mean of…

A: