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Meadas company makes shocks. The currently guarantee their shocks for 50,000 miles. The distance traveled before the shocks wear out is normally distributed with mean 63,000 and standard deviation 1
In Nancy's STAT 225 class, 75% of the students passed (got a C or better) on Exam 1. Suppose we randomly choose 10 students with replacement. Let X be the number of student(s) who passed. What is th
If equilibrium output rises by a total of $250 billion in response to an increase in government spending of $25 billion, what is the marginal propensity to consume?
A computer processes tasks in the order they are received. Each task takes an Exponential amount of time with the average of 2 minutes. Compute the probability that a package of 5 tasks is processed
Identify the role of p-values and confidence intervals within epidemiologic research and provide examples of how these are used to interpret research findings. Discuss the effect sample size has on
If the player is paid 3Y dollars, what is the expected amount paid to the player? What is the probability that the player tosses the die at least four times to obtain the two non-1's?
USFEC rents the flatbed trailers on which the organizations participating in the parade build their floats. The company that owns these trailers determines their rental price based on the mean weig
Deviation, your organization has a goal of 15 days for the average processing of a purchase request (PR) from notification to final approval. they are only concerned if it takes longer than 15 days.
Suppose we generate a random variable X in the following way. First we flip a fair coin. If the coin is heads, take X to have a Unif(0,1) distribution. If the coin is tails, take X to have a Unif(3,
Customers come to a barber shop with the frequency of 3 per hour. Suppose Y4 is the time when the 4th customer has come. Find the expected value and the standard deviation.
You write a new app that can take a picture of someone and automatically draw a funny mustache on them. It takes 3 seconds of time on your server to perform this process. You expect that the time be
The manager of Madison Finance Company has estimated that, because of a recession year, 3% of its 400 loan accounts will be delinquent. If the manager's estimate is correct, what is the probability
A single die is rolled 3 times. Determine the probability of getting all 6.
Another square of fabric, 12 inches on each side, is cutinto 6 rectangles. The average length is 4 inches with an SD of 2 inches; the average widthis 5 inches with an SD of 3 inches. Find the correl
A student is taking two courses, history and math. The probability the student will pass the history course is .51, and the probability of passing the math course is .73. The probability of passing
A financial planning service offers a university savings program. The plan calls for you to make six annual payments of $9,000 each, with the first payment occurring today, your child's 12th birthda
Let X be the number of successes in seven independent trials of a binomial experiment in which the probability of success is
A biology quiz consists of ten multiple-choice questions. Seven must be answered correctly to receive a passing grade. If each question has five possible answers, of which only one is correct, what
Consider a perfectly normally distributed population and answer the following: What is the Skewness value?
Suppose that a study discovered that the average time it took passengers to go through the customs process for international flights arriving at the Atlanta airport was 33 minutes. Assuming that the
For each equation below identify what type of equation it is (linear or exponential), which variable is the independent variable (name it) and which variable (name it) is dependent in the following
Determine the maximum number of months one can stay with this gym for $1000. After 11 months at the gym your total bill is $425. Is this what the equation predicted your bill would be? If not, calcul
Detemine the probability mass function for X. Let the random variable X be equally to assume any of the values 1/8, 1/4, or 3/8. Please show how to find the Probability Mass Function.
Carter Motor Company claims that its new sedan, the Libra, will average better than 20 miles per gallon in the city. Identify the type I error for the test and state the possible error by addressing
A company manufacturing electronic components for home entertainment systems buys electrical connectors from three suppliers. It buys 24% from Supplier A, 36% from Supplier B, and 40% from Supplier