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A box in a certain supply room contains four 40-W lightbulbs, three 60-W bulbs, and six 75-W bulbs. What is the probability that exactly two of the selected bulbs are rated 75-W?
Assume there are 18 homes in the Quail Creek area and 9 of them have a security system. What is the probability all four of the selected homes have a security system?
The probability the second truck is available is .51, and the probability that both trucks are available is .43. What is the probability neither truck is available?
Find the probability that 70 randomly selected washing machines will have a mean replacement time less than 9.1 years.
Each question has 4 possible answers of which one is correct. If all answers are random guesses, estimate the probability of getting at least 20% correct.
Suppose that a certain college class contains 65 students of these, 35 are seniors, 37 are economic majors. What is the probability that the student is both a senior and an economics major?
Compute the correlation coefficient. Determine the equation of the least squares line by calculating the slope and Y-intercept.Use this equation to forecast the number of books sold if 5.2 feet of s
They select every 20th person from the list until a sample of 100 is obtained. They then call these 100 people. Does this sampling plan result in a random sample? Simple random sample? Explain.
One evening after a meeting she talks to all 30 female employees who attended the meeting. Does this sampling plan result in a random sample? Simple random sample? Explain.
A study of the attendance at the University of Alabama's basketball games revealed that the distribution of attendance is normally distributed. What is the probability a particular game has an att
When the gear is being produced, the shop can make 80 gears per day (Hint: You should use the production model for inventory management).
Data packets are sent over a wireless network at a rate of 10 packets per second. what is the probability that exactly 10 data packets will be sent during any one second?
Six students, three boys and three girls, lineup in a random order for a photograph. What is the probability that the boys and girls alternate?
Find the p-value for the test. Assume that the distribution of weight per serving is normal. Draw a curve to support your explanation.
Do these data indicate that the mean satisfaction rating is different from 5.9? Test with α=.05 What is the p-value for the test? Draw a
Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds. Find the probability of the given range of pounds lost.
Forecast the mean number of unoccupied seats per flight to Germany next year. Discuss the accuracy of this forecast. Draw a curve to support your explanation.
Develop a point and 95% interval estimate of the mean number of unoccupied seats per flight during the past year. Forecast the mean number of unoccupied seats per flight to Germany next year. Discus
Considering the distribution of measures on a difficult exam, you would expect to find the greatest density of scores.
How would you define the population of this study? How would you go about choosing a random sample for this study?
Submit a six page paper (not including the title and reference pages) on one of the major topics listed below. Incorporate at least two related scholarly sources (articles, books, etc): Topic: Time
Given the amount of vitamin C in a medium orange is normally distributed with a mean of 70mg and a standard deviation of 6 mg.
Find the probability that the one-year return of this stock will be positive. Round your answer to at least four decimal places.
Your description of each of the three operational functions should include a clear specification of the function (e.g., setting daily room prices), a description of the data source (e.g., historical
Waiting times to receive food after placing an order at the local Subway sandwich shop follow an exponential distribution with a mean of 56 seconds. Calculate the probability a customer waits?