In a survey to determine whether the daily caloric intake of the adolescent girls in
Ahafo-Ano South district of Ashanti is less than 2000 kcal, a sample of 500 adolescent
girls were randomly sampled for the study. The mean daily caloric intake from this
sample was 1985 kcal, with a standard deviation of 210 kcal. Let α = 0.05. Assume
you do not know the population variance; can the researchers conclude that the
population mean is less than 2000 kcal

please show all workings step by step using the 9 steps in hypothesis testing!

The lifetime of a particular bulb is a random variable with an average of μ = 2000 hours and a standard deviation of σ = 200 hours.

(a) What is the probability that a bulb has a lifetime between 2000 and 2400 hours?

(b) What is the probability that a bulb will last less than 1470 hours?

(c) In the case that a bulb lasts for more than 2100 hours, the probability that it will last more than 2300 hours You calculate.

(d) the probability of a bulb lasting less than 2150 hours when it lasts for more than 2050 hours. You calculate.

Using excel, find the price of a 20-year $2000 par bond with 6% annual coupons for yield rates starting at 0 and increasing by .001 (.1%) until .15 (15%). Graph the bond prices (price on the y-axis and yield on the x-axis). Answer the following questions:

1. Describe your graph. What happens to bond prices when rates increase?
2. At what rate does the bond sell for par? (When is the price $2000)?
3. At what rates is the bond selling for a discount? Why is this happening?
4. At what rates is the bond selling at a premium? Why is this happening?

1. The amount of time a tire lasts is normally distributed with a mean of 30,000 km and standard
deviation of 2000 km.
(a) 68% of all tires will last between ____________ km and _____________ km.
(b) 95% of all tires will last between ____________ km and _____________ km.
(c) What percent of the tires will have a life that exceeds 26,000 km? _________
(d) What percent of the tires will have a life that lasts between 28,000 and 34,000 km? ______
(e) If a company purchases 2000 tires, how many tires are expected to last
 more than 28,000 km? ___________
 between 24,000 and 32,000 km? ____________

C++

Write a whole program to read 50 salaries from the file “Salaries.txt” and print them on the screen (each value on a separate line), you have to also save the grades (each value on a separate line) into another file “SalariesWithBonus.txt” after you add a bonus of two percent to each salary (example For the salary 100000 a bonus of 2000 will be added as 100000 X 0.02 = 2000). Your code should check whether the file “Salaries.txt” opened successfully; otherwise your program will terminate (by calling the exit function) indicating that it was due to an error.

Homework 5: Time value of money

1. You make a onetime deposit of $2000. Your investment period is 40 years and the interest rate is 9%.  How much you will have in your account after 40 years.

2. You decide to make an annuity deposit every year. You earn 9% on your investment.  If the deposit  amount is $2000 per year, how much you will have in your account after 40 years provided  (i) deposits are made at the end of each year (ii) deposits are made at the beginning of each year

Annuity

(i) You want to purchase a Honda Civic, but you choose to make an initial payment of $2000 and make monthly payments of $400. If the monthly interest rate is 1% and you will make 48 monthly payments for the Civic, what is the present value of your payment scheme?

(ii) If you decide to buy a Chevy Malibu that is more expensive, you are informed that you have to make an initial payment of $2000 and make 60 monthly payments of $400. Assume monthly interest rate is 1%. What is the present value of the payment scheme for buying a Malibu?

The research department of AMS SHINE Co. Ltd estimated that the supply function for their television sets is given by x r w s Qx  2000  3P  4P  P Where Px is the price of TV sets, Pr represents the price of a computer monitor, and Pw is the price of an input used to make televisions. Suppose TVs are sold for GH¢400 per unit, computer monitors are sold for GH¢100 per unit, and the price of an input is GH¢2000. (a) How many television sets are produced? (b) Drive and sketch the supply function (c) The Producer

Prepare statement of profit and loss and statement of financial position

Please show all work and assumptions made, and if possible explain your thoughts. Thank you!

1. How many human “radiators” are required to produce the same power as the world average of 20 Terawatts ? Assume 2000 Calorie per day diets! Answer is 210 billion but I dont know how to get it

2. What conclusion(s) can you draw from your answer to the previous problem?   
   hint: how does this value compare to the power radiated by all people on earth assuming that each person eats 2000 Calories per day?