(Solved): 4a-c 4. A small local airline wanted to see what proportion of customers are satisfied with their fl ...

4. A small local airline wanted to see what proportion of customers are satisfied with their flights. To test this, the airline conducted a simple random sample of 178 customers and found that 139 of the customers stated that there were highly satisfied with the experience. a. Calculate a \( 98 \% \) confidence interval for the true proportion of satisfied customers. Be sure to interpret your results in context. b. The airline decided to replicate their original study to double check their findings. The airline selected a new random sample and now calculated a \( 95 \% \) confidence interval for the proportion of satisfied customers to be \( (.7146,8469) \). How many customers claimed to be satisfied in this new study? c. The airline is wishing to expand its operations and has a potential investor lined up to assist with the expansion process. However, the investor only wants to help if evidence shows that the true proportion of satisfied customers is great than \( 85 \% \). Based off of the confidence intervals in part \( A \) and part \( B \), would the investor choose to help with the expansion process? Why or why not?