You are given the sample mean and the population standard deviation. Use this information to construct the​ 90% and​ 95% confidence intervals for the population mean. Interpret the results and compare the widths of the confidence intervals.

A random sample of 35 home theater systems has a mean price of ​$125.00.  Assume the population standard deviation is ​$19.60

Question: Analysis and Design Models: What's the Difference?

With the analysis phase behind us, reflect on the models built for the Theater project. How are they different from the models you plan on using during the design phase. Explain the differences in your own words. Next, find an article and/or video to share with the class on the subject.  

Database:

Our AD is Movie Theater.
Create an ER diagram with the following entities: Staff, Ticket, Movie, Session, Hall, Seat, Director, Actor, Distributor, and Roles. AND also identify the type of relations between the entities with notations and explain why you used it.

**Read the question carefully before you answer**

Write the pseudocode that prompts the user for their first and last name. Display the first initial of their first name and their last name to the user.

Ask the user to input a phone number.

The program checks which part of Colorado a phone number is from using the values below.

If the second digit of the phone number is one of the below digits, print the phone number and which part of Colorado it is from. If none of the digits are entered, display the phone number and state it is not in Colorado.

If the number is in Estes Park, the user should see: phone number + “is in Estes Park, it is time to go pick up your new Corgi puppy!”

If the second digit of a phone number is:

0 = Boulder

1 = Colorado Springs

2 = Denver

7 = Estes Park

Park Corporation is planning to issue bonds with a face value of $630,000 and a coupon rate of 7.5 percent. The bonds mature in 4 years and pay interest semiannually every June 30 and December 31. All of the bonds were sold on January 1 of this year. Park uses the effective-interest amortization method and also uses a discount account. Assume an annual market rate of interest of 8.5 percent. (FV of $1, PV of $1, FVA of $1, and PVA of $1) (Use the appropriate factor(s) from the tables provided. Round your final answer to whole dollars.)  

3. What bond payable amount will Park report on its June 30 balance sheet? (Enter all amounts with a positive sign.)

A firm has won the bid to complete a renovation of a hotel and you are to manage the labor to complete the job. The firm is assigning two workers named Ben and Jerry. The floors and walls must be redone and there are 60 hotel rooms to complete. The firm is not receiving payment by the hour but by the job. The firm's goal is to minimize time spent on this project. The table below shows the time it takes to complete a single room which has two aspects of the job.
Floors     Walls
Ben     3 hours    4 hours
Jerry   2 hours    3 hours
How many hours would it take to complete the entire hotel if each worker specialized in a task in which they had the comparative advantage? Do not let time pass with idle workers.

A Bacon Factory is located in a small town. Also in the town is a Water Park. The smell of the Bacon factory has adversely affected the Water Park such that it has put in air cleaning equipment to eradicate the odor created by the factory. Please show your work..

The cost function of the Bacon Factory is:

      C_BF= B² + 4B^1/2 + (1 − x)²

where B denotes the quantity of bacon produced annually and x denotes the quantity of pollutants that A creates in a given year.

Thus, the Bacon Factory can limit production costs by eliminating its air scrubbers. However, the air pollution increases the costs for the water park W, whose cost function is:

      C_WP = W² + 2x,

where W denotes the number of visitors to the Water Park on an annual basis.   Suppose that the unit price of admission to the water park is $3 and that the unit price of bacon is $32.5 per unit.

A. Compute the profit maximizing quantity of the Bacon Factory (B) and pollutant (x) produced by Bacon Factory B (assuming B behaves competitively in the output market, i.e., taking the price of Bacon as $32.50). Also, compute the Bacon Factory’s (Firm B) profits.

B. Compute the profit maximizing visits (represented by W) created by Firm W (assuming W behaves competitively in the output market, i.e., taking the price of visits as given). Notice that W does not choose x. Also, compute W’s profits.

C . Suppose now that the two firms B and W merge, creating B&W. The management of B&W now maximizes B&W’s profits by appropriately choosing x, B, and W. Find the quantities of Bacon, Water Park Visits, and pollutants that the new firm produces. Also, find the profits of B&W.

In c++, please make it short and simple

A hotel chain needs a program which will produce statistics for the hotels it owns.

Write a program which displays the occupancy rate and other statistics for any of the chain’s large hotels (all are 20 floors with 16 rooms each floor).

In main:

-declare a 20 X 16 array of “int” named hotel to represent a hotel’s 20 floors and 16 rooms per floor.

Then in main, repeatedly:

-call a function which fills the hotel array with 1s and 0s, where 1 indicates an occupied room and 0 indicates an unoccupied room. Call a second function to validate that each entry is either 1 or 0 by having the second function access the original entry using a pointer in its parameter list.

-pass the hotel array to a third function which dynamically allocates a new size 20 “int” array with each element representing a floor of the hotel and the floor’s number of occupied rooms; place the number of occupied rooms of each floor into the new array and return it to main.

-display the floor number** and number of occupied rooms on each floor by incrementing the address of the new array.

-also calculate and display the hotel’s overall occupancy rate to 1 decimal (total rooms occupied per total rooms), and the floor number** and number of occupied rooms of the floor with the highest occupancy.

-process another hotel (unknown number of hotels in chain).

**NOTE: hotels do not have a floor numbered 13 due to guests’ superstitions.

To create your screen print, temporarily set the floors and rooms to 3 and 5 respectively to reduce data entry, and enter:

Floor #1: occupied, occupied, unoccupied, occupied, unoccupied

Floor #2: occupied, unoccupied, occupied, occupied, occupied

Floor #3: occupied, unoccupied, unoccupied, unoccupied, occupied

the lifetimes of its tires follow a normal distribution with mean 48,000 miles and standard deviation 5,000 miles.

·a well-labeled sketch of this normal distribution

·the z-score corresponding to 55,000 miles

·the probability that a randomly selected tire lasts for more than 55,000 miles

·the manufacturer wants to issue a guarantee so that 99% of its tires last for longer than the guaranteed lifetime, what z-score should it use to determine that guaranteed lifetime

·the manufacturer wants to issue a guarantee so that 99% of its tires last for longer than the guaranteed lifetime, how many miles should it advertise as its guaranteed lifetime