The closest to the minimum number of consumers needed to obtain the estimate with the desired precision is (b) 271
Explanation:
When the prior estimate of population proportion is not given , then the formula to find the sample size is given by :-

where E = Margin of error.
z* = Critical z-value.
As per given , we have
E = 5%=0.05
Confidence level = 90%
The critical value of z at 90% is 1.645 (By z-table)
Put all values in the formula , we get
n=0.25(1.645/0.05)²
n=0.25(32.9)²
n=270.6025≈271
Thus, the minimum sample size needed = 271
Hence , the correct answer is 271 .
Answer:
incentives, trade-offs, opportunity cost, marginal thinking, and the principle that trade creates value.
Explanation:
Answer:
See explain
Explanation:
There are 4 factors of production, land labor entreprenuership and capital.
The land of the jewellery shop would be the actual land that the store is on itself. The labor of the shop would be any of the work that any employees are doing. The capital would be any goods or machinery that is used in the store like cash registers, or bulletproof glass to protect their belongings, or any tools that the store uses to help make their jewellery etc. The last and final factor entrepreneurship might be for example the owner of the store, who manages the other 3 factors to bring a profit to the store.