True! companies examine the demographics of people in a population, then selectively pick out a demographic among the many for whom they want to target their products and services at
        
             
        
        
        
<u>Solution and Explanation:</u>
a)  51% of users of mobile phones use their phone at least once per hour,
It is a binomial distribution with n = 150, p = 0.51
mean = np = 150 multiply with 0.51 = 76.5
SD= sqrt(np(1-p) )= 6.1225
Since np and n(1-p) > 5, we can assume the distribution is normal.
B) please see the attached file.
c)  It is a binomial distribution with n = 150, p = 0.02
mean = np = 150*0.02 = 3
SD= sqrt(np(1-p) )= 1.71464
Since np < 5, we cannot assume the distribution is normal.
  
 
        
             
        
        
        
Answer:
depreciation expense per year 8,000
Explanation:
<u>The first step,</u> is to calculate the depreciable amount for the asset:
cost - salvage value = amount subject to depreciation
43,250 - 3,250 = 40,000 = depreciable amount
<u>Then,</u> we calculate the depreciation per year:
depreciable amount/ useful life = depreciation per year
40,000/5 = 8,000
In some particular cases, the first year the asset enter the accounting it could be for a period of half the accounting period, so only half-year depreciation is appliedon the first year.
 
        
             
        
        
        
The activity in which Roger is engaged in is called program evaluation.
<h3>What is Program Evaluation?</h3>
This refers to the ability to make predictions about the things which are needed for a program to run successfully.
Hence, because Roger is involved in Human Resources planning and he is trying to predict what human resources will be needed in the coming year in his organization, then he is engaged in program evaluation.
Read more about program evaluation here:
brainly.com/question/26523302
 
        
             
        
        
        
Answer: 0.050
Explanation:
Mean = 18
USL = 18.6
LSL = 17.4
SD = 1.25
Cpk = Min{(mean - LSL / 3*sd), (USL - mean / 3*sd)}
= Min{ ( 18 - 17.4/ 3 * 1.25), (18.6 - 18 / 3 * 1.25)}
= Min { 0.05 0.05)
Cpk = 0.050