A study done by Georgetown stated that 71% of college students are also working. A random sample of 200 college students is taken. Find the probability that less than 75% are working. Round your standard deviation to three decimal places. O 0.89 O 0.91 O 0.76 O 0.79

A study done by Georgetown stated that 71% of college students are also working. A random sample of 200 college students is taken. Find the probability that less than 75% are working. Round your standard deviation to three decimal places. O 0.89 O 0.91 O 0.76 O 0.79

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: According to Money magazine, Maryland had the highest median annual household income of any state in…

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: a normal population has a mean of $92 and standard deviation of $11. You select random samples of…

A: Given information: Mean (µ)=92Standard deviation(σ)=11Sample size (n)=50 Find: PX¯-µ≤1.50 Formula: Z…

Q: An insurance salesperson sells an average of 4.90 policies per day. Let x denote the number of…

Q: Truck delivery fleet travel a mean of 110 miles per day with a standard deviation of 25 miles per…

A: Obtain the Z-score for the random variable X equals 97. The Z-score for the random variable X equals…

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: Assume that adults have IQ scores that are normally distributed with a mean of μ = 105 and a…

A: Here given situation is of normal distribution, which is continuous distribution. Let X : IQ of…

Q: The combined SAT scores for the students at a local high school are normally distributed with a mean…

A: Given: Mean=1487 standard deviation=307

Q: The average life of a smartphone is 7 years with a standard deviation of 1 year. Assuming that the…

A: Let X denotes the life of smartphones. Given that X follows approximately N(μ=7,σ2=12). The sample…

Q: The population average annual salary for high school teachers in Alhambra is $61,244. A random…

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

A: We have given that Mean(µ) = 7200Standard deviations (σ) = 1200 Number of days (n) = 30

Q: A set of exam scores is normally distributed and has a mean of 79.3 and a standard deviation of 7.4.…

A: Given datanormal distribution μ=79.3σ=7.4choose a random score less than or equal to this 0.0078we…

Q: Trucks in a delivery fleet travel a mean of 130 miles per day with a standard deviation of 39 miles…

A: The data on per day mileage of a delivery truck is normally distributed. Population mean, Population…

Q: The weights of steers in a herd are distributed normally. The standard deviation is 200lbs. and the…

A: Let "X" be the weight of steers in a herd.

Q: According to a recent study done on Americans, 64% of Americans are concerned about the future of…

Q: In the 1992 presidential election, Alaska's 40 election districts averaged 1936 votes per district…

A: Given : Mean = μ = 1936 Standard deviation = σ = 570 Sample size = n = 40

Q: About 10% of the population has a particular genetic mutation. 1000 people are randomly selected.…

A: Binomial distribution is a discrete distribution that deals with the probabilities of success and…

Q: Trucks in a delivery fleet travel a mean of 100 miles per day with a standard deviation of 19 miles…

A: Given that, μ=100σ=19 Let X denote the mileage per day and it follows normal distribution. That is,…

Q: SAT test scores are normally distributed with a mean of 500 and a standard deviation of 100. Find…

A: Given: Let X be the SAT test scores Mean(X)=500 SD(X)=100 X~ Normal(500, 1002)

Q: Solve the following problem and show your complete solutions. Explain your answer for better…

A: The length of time that a phone will work before it needs charging is normally distributed with mean…

Q: 2. Fill in the blanks: A standardized variable always has a mean of O and a standard deviation of…

A: 2. A standardized variable is always has mean 0 and standard deviation of 1.

Q: Assume that adults have IQ scores that are normally distributed with a mean of u = 100 and a…

A: Policy: Since you have asked multiple questions, we will solve the first question for you. If you…

Q: height of 80.1 inches and standard deviation of 2.97 inches. Round your answers to four places after…

Q: Temperatures a city are distributed approximately normal, with a mean of 61 degrees fahrenheit and a…

A: Given data,Mean μ=61sd σ=6P(X<70.5)=?

Q: y=3.1 n= 1.6 standard deviation Find probability that the child spends less than 3.4 hours a day…

A: Given that If y=3.1 n= 1.6 standard deviation

Q: Full-time Ph.D. students receive an average of $12,837 per year. If the average salaries are…

A: Given that ; μ = $ 12837 ? = $ 1500 X = $ 17000 To find P( x < 17000) = ? ? P( x > 17000) =…

Q: 2. The average credit card debt per household in 2001 was $8637 with a standard deviation of $2400.…

A: population mean = $8637Population standard deviation = 2400Sample size (n)= 225

Q: A statistics professor gives a survey to each of the 100 students in an introductory statistics…

A: Obtain the population standard deviation:

Q: According to BusinessWeek, 44% of advertisers claim they have been a victim of internet click fraud.…

A: The mean is, μ=np=120×0.44=52.8 The mean is 52.8. The standard deviation is,…

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: Assume that adults have IQ scores that are normally distributed with a mean of u= 100 and a standard…

Q: A study found that 1.21% of Social Security recipient are too young to vote. If 800 Social Security…

A: Answer: Given that p=1.21/100=.0121 , n=800…

Q: The Orchard Cafe has found that about 7% of the diners who make reservations don't show up. If 84…

A: 7% of diners who make reservations don't show up; p=0.07 84 reservations have been made; n=84

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…

Q: Provide an appropriate response. Use the Standard Normal Table to find the probability. IQ test…

A: Let X be the IQ scores from normal distribution with mean (μ) = 105, standard deviation (σ) = 11…

Q: You play a game of chance that you can either win or lose (there are no other possibilities) until…

A: Probability of losing (p) the game is 0.61 Probability of winning the game = 1- p = 1- 0.61=0.39

Q: MCAT scores are normally distributed with an average score of 500.5 and a standard deviation of…

A: Given Information:Mean, μ=500.5Standard Deviation, σ=10.5To find out the probabilty of getting a…

Concept explainers

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.

Question

A study done by Georgetown stated that 71% of college students are also working. A random sample of 200 college students is
taken. Find the probability that less than 75% are working. Round your standard deviation to three decimal places.
O 0.89
O 0.91
0.76
O 0.79

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

Trucks in a delivery fleet travel a mean of 100 miles per day with a standard deviation of 38 miles per day. The mileage per day is distributed normally. Find the probability that a truck drives at least 141 miles in a day. Round your answer to four decimal places.
Please explain. Thanks.
According to a study done by De Anza students, the height for Asian adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. Suppose one Asian adult male is randomly chosen. Let X = height of the individual. Find the probability that the person is between 64 and 69 inches. The middle 40% of heights fall between what two values?Write the probability statement. State the two values. (Round your answers to one decimal place.) x1,x2 ch6#9
answer part b only. it is not 29.665
Please answer within 30min thanks.
A survey of college students reported that they spend an average of $9.50 a day on dinner with a standard deviation of $3. What is the probability that 100 randomly selected college students will spend more than $10.25 on average for dinner? Round your answer to 4 decimal places.
Citizens use an average of 650 pounds of paper a year. Suppose that the distribution is normal with a population standard deviation of 153.5 pounds. Suppose you take a random sample of 25 Citizens. What is the probability that the mean pounds of paper used in a year are between 500 and 700 pounds
About 10% of the population had a particular genetic mutation. 900 people are randomly selected. Find the standard deviation for the number of people with the genetic mutation in such groups of 900. Round answer to 4 decimal places.
Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the standard deviation is 5. What is the probability of selecting a person with a score greater than Cody’s?
The NJ Department of Health has reported the average life span of NJ residents is 81 years. If the standard deviation is σ = 4 years, what is the probability of a person living to at least 92 years of age?
Boston, Massachusetts, averages 211.7 sunny days per year. Assume that the number of sunny days follows a normal distribution with a standard deviation of 20 days. 20 What is the probability that Boston has less than 200 sunny days in a given year? a 0.2394 b 0.2520 c 0.2653 d 0.2793
Use your Ti-84 to find the mean and standard deviation of the discrete probability distribution below. Match your screen shot with the correct screen shot.