Answer: a. 2.8
Explanation:
Given : Population mean : 
Sample size : n= 49> 30 , the sample is a large sample we use z-test.
Sample mean = 
Standard deviation : 
The test statistic for population mean is given by :-

Hence, the value of the test statistic is 2.8
Answer:
a. consists of two or more independent organizations that combine their requirements for materials, services and capital goods to gain better pricing, service and technology from suppliers.
Explanation:
A purchasing consortium consists of two or more independent organizations that combine their requirements for materials, services and capital goods to gain better pricing, service and technology from suppliers. It is also known as group purchasing organization or cooperative purchasing and typically comprises of organizations sharing similar purchasing requirements or needs coming together in order to enhance their purchasing or bargaining power (capabilities) in the market.
The main purpose of a purchasing consortium is to provide a leverage for two or more independent organizations by reducing their purchasing costs when acquiring resources or materials required for the smooth operation of their business.
Answer:
The correct answer is B.
Explanation:
Giving the following information:
An investment of $115 generates after-tax cash flows of $50 in Year 1, $90 in Year 2, and $150 in Year 3.
Rate of return= 20%
To calculate the present value, we need the following formula:
NPV= -Io + ∑[Cf/(1+i)^n]
Cf= cash flow
Io= 115
Cf1= 50/ 1.20= $41.67
Cf2= 90/1.2^2= $62.5
Cf3= 150/1.2^3= $86.81
NPV= -115 + (41.67 + 62.5 + 86.81)
NPV= $75.98
Answer:
The correct answer is letter "A": concurrent .
Explanation:
Concurrent control is adopted to regulate ongoing activities in an organization so that they can meet the company's standards. This type of control is chosen to ensure that the output will have the results expected. It implies measuring the quality of the processes at a certain point in time to determine to continue with them or not.