Small sample: During an economic downturn, companies were sampled and asked whether they were planning to increase their workforce. Only of the companies were planning to increase their workforce. Use the small-sample method to construct a confidence interval for the proportion of companies that are planning to increase their workforce. Round the answers to at least three decimal places. A confidence interval for the proportion of companies that are planning to increase their workforce is .

Complete Question

The complete question is shown on the first uploaded image

The confidence level interval is  

Step-by-step explanation:

The sample size is  

The number planning to increase workforce is  

 The confidence level is  %

The value of proportion for a plus 4 method is

substituting values

The z-critical value at confidence level of 98% is

This values is obtained from the standard normal table

The confidence level interval can be mathematically represented as

substituting values

=>  

b

step-by-step explanation: