In the Burton article, “Why placebo is not a dirty word”, th…
Questions
In the Burtоn аrticle, “Why plаcebо is nоt а dirty word”, the author describes a study in which patients were given either an injection of morphine after dental surgery or an injection of saline (a placebo) that they were told was an injection of a new, powerful pain reliever. What happened?
Whаt type оf childbirth technique hаs been fоund tо lower women's аnxiety about birth and help them feel more knowledgeable and more in control of the birth process?
Cоmplete the Pythоn prоgrаm thаt simulаtes a diet vending machine. The program have several functionalities illustrated in the diagram and explained below. Your program must include eight functions: main, state_A, state_B, state_C, state_D, state_E, state_F, and state_G. Some of these functions are already provided (state_A and state_G). One function (main) contains partial code that you must complete, while the remaining functions need to be fully implemented. state_A: Parameters: none. Returns: Updated total_inserted value after the user adds enough money to meet or exceed the drink cost. Description: The state_A() function represents the menu state of the vending machine. It prompts the user to enter one of three options: 'q' to quit the program, 's' to restock the machine, or any other input to continue to the next step. Based on the user's choice, the function returns the appropriate next state: 'G' to shut down the machine, 'F' to restock the inventory, or 'B' to move on to the money-insertion state. state_B: Parameters: total_inserted — the current amount of money the user has already inserted. Returns: Updated total_inserted value after the user adds enough money to meet or exceed the drink cost. Description: The state_B() function handles the money-insertion process for the vending machine. It repeatedly prompts the user to insert a valid coin amount (0.05, 0.10, 0.25, or 1.00) until the total amount inserted is greater than or equal to the required drink cost. Each time the user enters a coin, the function checks if the value is valid; if not, it displays an error message. When a valid coin is entered, it adds the value to total_inserted and displays the updated total. Once enough money has been inserted, the function returns the final amount to the main program. state_C: Parameters: drink — a list representing the current inventory of each drink option. Returns: The selected drink number (1, 2, or 3) if available, or -1 if all drinks are sold out. Description: The state_C() function manages the drink-selection process. It prompts the user to choose a drink by entering 1, 2, or 3. The input is validated to ensure it falls within the correct range. If all drinks in the machine are sold out (drink == [0, 0, 0]), the function notifies the user and returns -1, signaling that the machine should restock. Otherwise, it checks whether the chosen drink is in stock. If the selected drink is sold out, the user is prompted to choose again until a drink with available inventory is selected. Once a valid and available drink is chosen, the function returns the corresponding drink number. state_D: Parameters: item — the drink number selected by the user (1, 2, or 3). drink — a list representing the current inventory of each drink option. Returns: The next state identifier "E". Description: The state_D() function is responsible for dispensing the selected drink. It reduces the inventory count of the chosen drink by subtracting one from the appropriate index in the drink list. After updating the inventory, it prints a message indicating that the selected drink is being dispensed. Once the drink is dispensed, the function returns "E", signaling that the machine should move on to the change-return state. state_E: Parameters: total_inserted — the total amount of money the user inserted. Returns: The next state identifier 'A'. Description: The state_E() function handles the change-return process after a drink has been dispensed. If the user inserted more money than the drink cost, the function calculates the remaining change by subtracting the cost from total_inserted. It then displays the amount of change owed to the user. After returning the change, the function returns 'A', indicating that the machine should return to the main menu state to begin a new transaction. state_F: Parameters: total_inserted the current amount of money the user has already inserted. Returns: A restocked drink inventory list [2, 4, 6]. Description: The state_F() function restocks the vending machine by resetting the inventory of all drink options. It prints a message informing the user that the machine has been successfully restocked. After displaying the message, the function returns a new list [2, 4, 6], representing the refreshed quantities of each drink. This updated inventory is then used by the main program to continue normal operation. state_G: Parameters: none. Returns: none. it will stop the program main: Parameters: none Returns: none. Description: The main() function manages the entire vending machine by using a state machine structure. It begins in State A and repeatedly executes different parts of the program until it reaches State G, which shuts the machine down. Within the loop, the program keeps track of the drink inventory using the list drink = [2, 4, 6], the amount of money inserted using total_inserted, and the user’s drink choice using the variable item. As the machine moves through each state, it displays the menu, accepts money, handles drink selection, dispenses the chosen drink, returns any remaining change, and restocks when necessary. Each state determines the next step in the process, and the loop continues to cycle through these states until the machine transitions into State G, ending the program. Your Tasks: Part 1: Complete the missing sections inside the main function.Part 2: Fully implement all missing functions.Part 3: Extra credit Part 1: Complete the missing sections inside the `main` function. money = [.05, .1, .25, 1] cost = 1.25 state = 'A' def state_G(): return 'G' def state_A(): option = input("nType 'q' to quit, 's' to restock, or anything else to continue: ") if option == 'q': return 'G' elif option == 's': return 'F' else: return 'B' # All functions you write in part B should be treated as if they will be inserted here. def main(): state = 'A' drink = [2,4,6] total_inserted = 0.0 item = -1 while state != 'G': # menu if state == 'A': state = [x1]