Instruction 8-7 After an Extensive Advertising Campaign,the Manager of a Company Wants

Instruction 8-7
After an extensive advertising campaign,the manager of a company wants to estimate the proportion of potential customers that recognise a new product.She samples 120 potential consumers and finds that 54 recognise this product.She uses this sample information to obtain a 95% confidence interval that goes from 0.36 to 0.54.
-Referring to Instruction 8-7,the parameter of interest is 54/120 = 0.45.