Final answer:
This question is related to the delivery time of apps, soups, and salads. It falls under the subject of Business. In example 8.2, a 90% confidence interval estimate for the population mean delivery time can be calculated using the sample mean delivery time of 36 minutes and the known population standard deviation of 6 minutes.
Step-by-step explanation:
This question is related to the delivery time of apps, soups, and salads. It falls under the subject of Business as it involves the operation and logistics of food delivery.
To estimate the population mean delivery time, we can use the concept of confidence intervals. In example 8.2, a 90% confidence interval estimate for the population mean delivery time can be calculated using the sample mean delivery time of 36 minutes and the known population standard deviation of 6 minutes.
Using statistical methods, the confidence interval provides a range of likely values for the true population mean based on the sample data.