Question

An online seller of yema cake, which is very popular in Tayabas Quezon surveyed several

customers. Fifty-two percent (52) of the customers were satisfied with the services that were

offered with a 3.98% margin of error. Determine the confidence interval using this information.

The average percentage of people who are satisfied with the product is_

The lower limit of confidence interval is

The upper limit of confidence interval is

The confidence interval is

Answer 1

The average percentage of people who are satisfied is 52%

p=0.52

Margin error =0.0398

Lower Limit =p-margin error

Lower Limit =0.52-0.0398=0.4802

Upper Limit =p+ margin error

Upper Limit=0.5598

Confidence interval = (Lower Limit ,Upper Limit )

Confidence interval = (0.4802,0.5598)