uestion 2Select one answer.10 pointsThe number of computer monitors manufactured per day by CompScreens Inc. is a random variable X, with a mean μx = 120 and a variance of σ2x = 36. The cost of manufacturing the monitors is $500 base cost plus $15 per monitor.What is the variance of the total cost per day for CompScreens Inc. to manufacture computer monitors? 540 1040 8100 8600Question 3Select one answer.10 pointsA building has two elevators, an express elevator and a standard elevator. Let X be the number of passengers using the express elevator every hour, and let Y be the number of passengers using the standard elevator every hour. Assuming that μX = 55 and μY = 32, what is the mean of Z, the total number of passengers using the elevators each hour? 23 32 55 87Question 4Select one answer.10 pointsThe Coff-E-Cup beverage company has opened two franchises in town. They put one location in the center of town and one at the west end of town. Let X be the number of customers that enter the center of town location in an hour, and Y be the number of customers that enter the location at the west end of town in an hour. Assuming that μX = 65 with σX = 4.3 and μY = 45 with σY = 3.2 , what is the mean of Z, the total number of customers that enter these locations in an hour? 55 110 20 65 45Question 5Select one answer.10 pointsSafari Adventure Theme Park is a selfguided theme park in which people drive through a park filled with African wildlife. They are given a map and a written guide to the wildlife of the park. They charge $20.00 per car plus $2.00 per person in the car. The number of people per car can be represented by the random variable X which has a mean value μX = 3.2, and a variance σ2x = 1.4. What is the mean of the total amount of money per car that is collected entering the park? $66.00 $26.40 $22.00 $6.40
Question
uestion 2Select one answer.10 pointsThe number of computer monitors manufactured per day by CompScreens Inc. is a random variable X, with a mean μx = 120 and a variance of σ2x = 36. The cost of manufacturing the monitors is 15 per monitor.What is the variance of the total cost per day for CompScreens Inc. to manufacture computer monitors? 540 1040 8100 8600Question 3Select one answer.10 pointsA building has two elevators, an express elevator and a standard elevator. Let X be the number of passengers using the express elevator every hour, and let Y be the number of passengers using the standard elevator every hour. Assuming that μX = 55 and μY = 32, what is the mean of Z, the total number of passengers using the elevators each hour? 23 32 55 87Question 4Select one answer.10 pointsThe Coff-E-Cup beverage company has opened two franchises in town. They put one location in the center of town and one at the west end of town. Let X be the number of customers that enter the center of town location in an hour, and Y be the number of customers that enter the location at the west end of town in an hour. Assuming that μX = 65 with σX = 4.3 and μY = 45 with σY = 3.2 , what is the mean of Z, the total number of customers that enter these locations in an hour? 55 110 20 65 45Question 5Select one answer.10 pointsSafari Adventure Theme Park is a selfguided theme park in which people drive through a park filled with African wildlife. They are given a map and a written guide to the wildlife of the park. They charge 2.00 per person in the car. The number of people per car can be represented by the random variable X which has a mean value μX = 3.2, and a variance σ2x = 1.4. What is the mean of the total amount of money per car that is collected entering the park? 26.40 6.40
Solution
Sure, here are the answers to your questions:
Question 2: The variance of the total cost per day for CompScreens Inc. to manufacture computer monitors is calculated by multiplying the variance of the number of monitors manufactured per day by the square of the cost per monitor. So, σ²y = σ²x * (cost per monitor)² = 36 * (15)² = 8100. So, the answer is 8100.
Question 3: The mean of Z, the total number of passengers using the elevators each hour, is the sum of the means of X and Y. So, μz = μx + μy = 55 + 32 = 87. So, the answer is 87.
Question 4: The mean of Z, the total number of customers that enter these locations in an hour, is the sum of the means of X and Y. So, μz = μx + μy = 65 + 45 = 110. So, the answer is 110.
Question 5: The mean of the total amount of money per car that is collected entering the park is calculated by adding the cost per car to the product of the mean number of people per car and the cost per person. So, μy = cost per car + μx * cost per person = 20 + 3.2 * 2 = 26.40.
Similar Questions
A project is to build four walls in four days and the budget at completion is 1000 dollars.At the end of the third day.you have completed 3 walls and spent $1000.What is your cost variance? $500 0-$500 ○-$250 ○$0
Given the following information, calculate the direct labor price variance. Actual production in units17,000Standard labor cost per unit1/2 hour @ $20 per hourActual cost for labor$216,750 for 12,750 hoursMultiple choice question.$72,750 favorable$38,250 unfavorable$38,250 favorable$72,750 unfavorable
Multiple Choice QuestionA company had a standard sales price of $1.79 per unit and expected to sell 10,000 units. Due to a downturn in the economy, the product was marked down to $1.59 per unit and the company only sold 9,500 units. Calculate the sales price variance.Multiple choice question.$2,000 U$1,900 F$2,000 F$1,900 U
A building has two elevators, an express elevator and a standard elevator. Let X be the number of passengers using the express elevator every hour, and let Y be the number of passengers using the standard elevator every hour. Assuming that μX = 55 and μY = 32, what is the mean of Z, the total number of passengers using the elevators each hour? 23 32 55 87
XYZ Company makes one product and has calculated the following amounts for direct labor: AH x AR = $84,000; AH x SR = $83,000; SH x SR = $85,000. Compute the direct labor cost variance.Multiple choice question.$2,000 F$1,000 U$2,000 U$1,000 F
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.