Suppose an experiment is conducted where 100 students at BU are measured and their average height is found to be 67.45 inches, and the (sample) standard deviation to be 2.93 inches. Since 100 is a large sample, we use the sample standard deviation as an estimate of the population standard deviation. We may assume that heights are normally distributed.

(a) Suppose that you want to report the 95.45...% confidence interval (i.e., exactly 2 standard deviations). Give the results of this experiment.

(b) Repeat (a) but for the 99.73... % (exactly 3 standard deviations) confidence interval.

(c) Now suppose you want to report the precisely 95.0% confidence interval (which will be slightly less than 2 standard deviations -- find out the exact figure) Repeat (a) using this confidence interval.

(d) Repeat (c) but for the precisely 99.0% confidence interval.

Based on the Internal Controls and Transaction-Related Audit Objective follow the procedures below in determining the Control Activity, Existence Test and Error Test in bold. Follow by a brief explanation of why this is suitable for the specific category.

·         Determine the Control activity for your assigned control. e.g Separation of Duties. Adequate documents and records, etc

·         What test would you run to determine the Existence of the Control. e.g Observation, Inspection, etc.

·         What test would you run to determine that there are no errors of the type the control is designed to identify? e.g. Occurrence, Completeness, etc.

Methyl methacrylate was polymerized at a mass concentration of 200g dm^-3 in toluene using azobisisobutyronitrile as initiator at a mass concentration of 1.64 X 10^-2 g dm^-3 and a reaction temperature of 60 degree C. Calculate the initial rate of polymerization and the molar mass of the poly(methyl methacrylate) formed in the initial stages of the reaction given that the relevant rate coefficients at 60 degrees C are:

Initiator dissociation: k sub d= 8.5 X 10 ^-6 reciproical seconds

Propagation k sub p= 8.33 dm^3 mol^-1 s^-1

termination, k sub t= 9.3 X 10 ^6 dm ^3 mol ^-1 s^-1

transfer to monomer k sub trm= 3.93 X 10 ^-3 dm^3mol^-1s^-1

Transfer to solvent k sub trS= 7.34 X 10 ^-3 d, ^3 mol ^-1 s^-1

Assume that the initiator efficiency f=0.7 that the termination by combinaition is negligible, and that the density of the initial solution of MMA in toluene is 860 g dm^-3

A 14 kg projectile is launched at 380 m/s at a 55 ∘ angle to the horizontal. At the peak of its trajectory it collides with a second projectile moving horizontally, in the opposite direction, at 140 m/s . The two stick together and land 9.8 km horizontally downrange from the first projectile's launch point.

Find the mass of the second projectile.

1. (a) Provide the formula for calculating Price Elasticity of Demand.

(b) Explain each variable in the formula you provided above.

2. Explain how the formula is used to make decisions regarding increasing revenue

Write the code of:
– an abstract class called Creature
– classes Player and Monster (derived from Creature)
– classes WildPig and Dragon (derived from Monster)

In the Creature class
– Define a string member, Creature Name, to store the class Creature’s name.(name should be dynamically allocated)
– Define Two virtual pure functions

• void DoAction() : Print the action of the object, and the actions have to be different from different classes.

• void DrawOnScreen() : Print the object’s name and call DoAction() belonging to the same class.
The class definition of Creature is:


Question: Implement the class Player, Monster, Dragon and Wildpig so that when execution the following code, the counsel shows the execution result as the following:

Counsel output:

Player <Kick_Ass> is attacking!!
Monster<UFO> is doing monster stuff!!
WildPig <I'm_Hungry> is Running!!
Dragon<I'm_the_Boss> is breathing Fire!!

Main function:
//==================================================
int main(){
Player hero("Kick_Ass");
Monster mon("UFO");
WildPig pig("I'm_Hungry");
Dragon drag("I'm_the_Boss");
Creature* object[4];
object[0]=&hero;
object[1]=&mon;
object[2]=&pig;
object[3]=&drag;
object[0]->DrawOnScreen();
object[1]->DrawOnScreen();
object[2]->DrawOnScreen();
object[3]->DrawOnScreen();

return0;
}
c++

Use Coulomb's law to estimate the average distance between the sodium nucleus and the 3s electron.

The intangible assets section of Grouper Corporation’s balance sheet at December 31, 2017, is presented here.

The patent was acquired in January 2017 and has a useful life of 10 years. The copyright was acquired in January 2011 and also has a useful life of 10 years. The following cash transactions may have affected intangible assets during 2018.

Prepare journal entries to record the 2018 amortization expense for intangible assets. (Credit account titles are automatically indented when amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts.) How is it calculated?

Create program in Python (using import turtle):

1)includes draw_background function

2)draw_background function uses a loop to draw a background from at least one shape

3)uses at least 2 turtles to draw scent

4)includes draw_shape function

5)includes function to draw primary object

6)includes main method which creates the drawing

1. The following output was obtained from a regression analysis of the dependent variable Rating and an independent variable Price. (10 points)

1. Use the critical value approach to perform an F test for the significance of the linear relationship between Rating and Price at the 0.05 level of significance.
2. Calculate the coefficient of determination.
3. What percentage of the variability of Rating can be explained by its linear relationship with Price? What is the sample correlation coefficient?
4. What is the estimated regression equation?
5. Use the p-value approach to perform a t test for the significance of the linear relationship between Price and Rating at the 0.05 level of significance.

These questions are based off the new 2020 Mercedes C-class model commercial- The ad is called, "Non-stop Engineering tv commercial.

a. Identify metrics of success/failure. Use secondary sources and/or corporate communications to support your metrics choices. (Talk about social media insights, sales, etc.)

b. Based on those metrics, evaluate the effectiveness of the television campaign. Thank you!

Using the table and information below to calculate the following: The value of the stock is currently $87, and expiration is Jan 16, Feb 16, and March 16. Briefly discuss your results.

1. Complete the profit/loss tables for 80, 85, 90, 95 at the end of the period.
2. Calculate the Long Straddle (buy long call and long put) using March 90 options

3. Calculate the Short Strip using the 95 March options.

4. Calculate the net value of a protective put position at an expiration stock price of 50. Use a strike price of 80.
5. Calculate the net value of a covered call position at an expiration stock price of 100. Use a strike price of 95.

1.50 × 1020electrons flow through a cross section of a 4.50-mm-diameter iron wire in 6.00 s .

What is the electron drift speed?