bac-s-maths 2017 Q1C

bac-s-maths · France · polynesie Modelling and Hypothesis Testing
Part C - Satisfaction survey
The company announces a satisfaction rate of $85\%$ for its customers who called and reached an operator.
A consumer association wishes to verify this rate and surveys 1303 people. Among these, 1150 say they are satisfied. What do you think of the satisfaction rate announced by the company?
\textbf{Part C - Satisfaction survey}

The company announces a satisfaction rate of $85\%$ for its customers who called and reached an operator.\\
A consumer association wishes to verify this rate and surveys 1303 people. Among these, 1150 say they are satisfied. What do you think of the satisfaction rate announced by the company?