You are a business analyst working for a logistics company in Mumbai. The company is planning a report on the on-time delivery rate of their packages. To provide accurate information to your clients, your supervisor has asked you to estimate the proportion of packages that are delivered on time. You have collected a sample data set from various deliveries in Mumbai. Using this data, estimate the proportion of packages that are delivered on time. Use a 90% confidence level for your estimate and round your answers to four decimal places.   Here is the sample data you collected (“on time” indicates on-time delivery, “late” indicates late delivery):   on time, on time, on time, late, on time, late, late, on time, late, late, on time, on time, late, late, on time, on time, on time, on time, late, late, late, late, on time, on time, late, on time, on time, late, late, late   HELPFUL NOTE: Copy and paste the data into an Excel workbook. If it jams it all into a single cell, use the “text to columns” function in the Data ribbon to tell it to split it into individual cells using a comma delimiter. Left bound = Right bound =

Why is it recommended to use a context manager (the with statement) when opening files in Python, rather than manually opening and closing files?

Thinking of the Calvin Cycle, the correct label for Z is , for X is and Y is .  

What happens to the standard error as the sample size increases?

The diameter of propellers for drones follows a normal distribution with a mean of 8 inches and a standard deviation of 0.2 inches. What is the probability that a propeller’s diameter will be between 7.78 inches and 8.16 inches? Select the correct Excel function statements to calculate this probability.

A(n) ________ provides an integrated development environment for rapidly developing Java programs. Editing, compiling, building, debugging, and online help are integrated in one graphical user interface.

The time spent by customers on a website follows a normal distribution with a mean of 18 minutes and a standard deviation of 2 minutes. What is the probability that a customer’s time spent on the website will be between 13 minutes and 20 minutes? Provide the correct numerical answer as a decimal, rounded to three decimal places.

How many main points should be in the body? 

The processing time for a batch of products in a factory follows a normal distribution with a mean of 30 minutes and a standard deviation of 5 minutes. What is the probability that the processing time will be between 26 minutes and 38 minutes? Select the correct Excel function statements to calculate this probability.

The number of sunny days in a year in a certain region follows a normal distribution with a mean of 120 days and a standard deviation of 25 days. A climatologist wants to figure out what a likely range of outcomes is for the number of sunny days. What is the upper bound to an interval in which the number of sunny days will fall 80% of the time? Provide your answer rounded to the nearest whole number.