Answer:
Step-by-step explanation:


case~2

Answer:
0.001665973
Step-by-step explanation:
Answer:
the variable is "b"
Step-by-step explanation:
Answer:
2nd and 3rd
Step-by-step explanation:
Answer:
the number of families needed for the survey is 2,157
Step-by-step explanation:
The computation of the number of families needed for the survey is shown below:
Given that
The Standard deviation is $900
Service level = 99%
z value at 99% = 2.58
Expenditures = $50
Based on the above information
The number of families needed for the survey is

= 2,157
Hence, the number of families needed for the survey is 2,157