A production facility has a constant flow of truck drivers that pickup products to deliver to...

A production facility has a constant flow of truck drivers that pickup products to deliver to customers. Recently, they have installed a new automatic gate system. Occasionally, truck drivers have issues either entering or exiting the facility using the automatic gate system. Over the course of one week, the production facility randomly selected 8 truck drivers. The random sample showed an average of 4.5 (with a standard deviation of 3.3) issues with entry into the facility and an average of 6.6 (with a standard deviation of 2.0) issues with exit from the facility. The production facility would like to know if the new automatic gate system has more issues with exiting the facility than entering it. What test should be used?

		Two sample test of means with unknown variance (standard deviation) but assumed equal
		Two sample test of means with unknown variance (standard deviation) but assumed unequal
		Two sample test of means with known variance (standard deviation)
		Two sample test of paired means with unknown variance (standard deviation)

Expert Solution

Ans :

Two sample test of paired means with unknown variance (standard deviation)

orchestra answered 2 years ago

To save fuel, some truck drivers try to maintain a constant speed when possible. A truck...

To save fuel, some truck drivers try to maintain a constant speed when possible. A truck traveling at 29.0 km/hr approaches a car stopped at the red light. When the truck is 191.2 meters from the car the light turns green and the car immediately begins to accelerate at 2.3 m/s2. How close does the truck come to the car assuming the truck does not slow down? How far from the stop light has the car travelled when the truck...

A 1196-kg car and a 2010-kg pickup truck approach a curve on the expressway that has...

A 1196-kg car and a 2010-kg pickup truck approach a curve on the expressway that has a radius of 253 m . At what angle should the highway engineer bank this curve so that vehicles traveling at 60.0 mi/h can safely round it regardless of the condition of their tires? Should the heavy truck go slower than the lighter car? As the car and truck round the curve at 60.0 mi/h , find the normal force on the car to...

Maintenance of Production Facility A production facility has several 3-D printing machines which need maintenance for...

Maintenance of Production Facility A production facility has several 3-D printing machines which need maintenance for two reasons. Maintenance type A: a sensor may have detected a fault, e.g. an oil leak. Maintenance type B: the quality of the printed product is unacceptable. Each maintenance requirement occurs at random and independently of other requirements for maintenance, with characteristics summarized in the following table: Maintenance Type Average rate of occurrence per week totalled over all 3-D printing machines in the production...

Padmanabhan, Inc. manufactures two products in its production facility. Estimated production details for each product for the...

Padmanabhan, Inc. manufactures two products in its production facility. Estimated production details for each product for the coming year are as follows: Product X1 Product GB 12 X1 - Estimated production – 1,200 units GB 12- Estimated production – 800 units X1 - Unit raw materials cost -$300.00 per unit GB 12 -Unit raw materials cost -$200.00 per unit X1 - Unit direct labor - 4 hours per unit at $12 per hour GB 12 -Unit direct labor - 4 hours...

A facility that manufactures fireworks has a large increase in production every June, such that their...

A facility that manufactures fireworks has a large increase in production every June, such that their peak electrical demand is 101, while in every other month of the year their peak electrical demand of 50. The local utility informs the client that they will be changing the rate structure. The demand charges will decrease from $7.54/kW to $5.37/kW. But the utility will start imposing a ratchet clause at 80% of peak demand. What will be the expected change in annual...

The economist for the ABC Truck Manufacturing Corporation has calculated a production function for the manufacture...

The economist for the ABC Truck Manufacturing Corporation has calculated a production function for the manufacture of their medium-size trucks as follows: Q = 1.3L0.75 K 0.3 where Q is number of trucks produced per week, L is number of labor hours per day, and K is the daily usage of capital investment. a. Does the equation exhibit increasing, constant, or decreasing returns to scale? Why? ( 5 marks) b. How many trucks will be produced per week with the...

A business entrepreneur has recently leased a small herbicide production factory. The production facility rent costs...

A business entrepreneur has recently leased a small herbicide production factory. The production facility rent costs him $180 per day. In addition, he must pay $85 for the lease on conveyor line, $48 for maintenance costs, $76 for utilities, $52 for interest on the loans used to maintain current operations, $64 for business insurance, $35 for property taxes, and those daily costs must be paid regardless whether the factory is operating or not. There are two major components required to...

Dell computer has a production facility in India. Recently, the firm was taxed at a significantly...

Dell computer has a production facility in India. Recently, the firm was taxed at a significantly higher rate than local computer companies. Which type of risk is Dell most likely experiencing?

: A production system has three production machines. Machine A consists one component with constant failure...

: A production system has three production machines. Machine A consists one component with constant failure rate of 0.000512 failures per day. Machine B consists of two components; this machine works if one or more of its components work; each one of these components has constant failure rate of 0.000725 and 0.000618 failures per day respectively. The third production machine consists of two components; the production in this machine stops if any of these two components stop; and one of...

A firm has the following production function: Q = K0.8L0.1 Show if this is a constant,...

A firm has the following production function: Q = K0.8L0.1 Show if this is a constant, decreasing, or increasing returns to scale production function? Explain. Find the marginal rate of technical substitution (MRTS) and discuss how MRTS changes as the firm uses more L, holding output constant. Suppose that the wage rate is $10 per hour and the rental rate of capital is $10 per hour. If the firm wants to produce 500 units of output, what is the cost-minimizing...

Question