228k views
1 vote
What is the minimum number of clients the travel agent should survey? Note that z=1.96 for a 95% confidence interval.

User Felice
by
8.5k points

1 Answer

3 votes

Answer:

121

Explanation:

Given data as per the question

Standard deviation =
\sigma = 840

Margin of error = E = 150

Confidence level = c = 95%

For 95% confidence, z = 1.96

based on the above information, the minimum number of clients surveyed by the travel agent is


n = ((z* \sigma)/(E))^2


= ((1.96* 840)/(150))^2

= 120.47

= 121

hence, the 121 number of clients to be surveyed

Therefore we applied the above formula to determine the minimum number of clients

User Sylph
by
7.3k points

No related questions found