The time spent by customers on a website follows a normal distribution with a mean of 15 minutes and a standard deviation of 3 minutes. What is the probability that a customer’s time spent on the website will be between 10 minutes and 18 minutes? Provide the correct numerical answer as a decimal, rounded to three decimal places.

What does the term “sample distribution” refer to?

A client voices concerns about preventing neural tube defects during pregnancy. Which supplement will the nurse recommend to prevent the problem?

What happens to the accuracy of a sample estimate as the sample size increases?

What is the main goal of calculating a confidence interval in sampling?

Given a dictionary data = {“name”: “Alice”, “age”: 30}, write a Python program to save this dictionary as a JSON file named data.json and then load the content back from the file.

Create a Python script that catches a division by zero exception.

What role does an H-Bridge play in controlling the direction of a DC motor, and how is it implemented on a Raspberry Pi?

The waiting time for a customer service call follows a normal distribution with a mean of 10 minutes and a standard deviation of 2 minutes. The call center manager wants to figure out what a likely range of outcomes is for their waiting times. What is the lower bound to an interval in which the waiting time will fall 95% of the time? Provide your answer rounded to one decimal place.

The number of daily visitors to a boba tea shop follows a normal distribution with a mean of 5000 and a standard deviation of 800. The shop owner wants to figure out what a likely range of outcomes is for their daily visitors. What is the upper bound to an interval in which the number of daily visitors will fall 85% of the time? Provide your answer rounded to the nearest visitor.