A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 47.0 and 57.0 minutes. Find the probability that a given class period runs between 50.25 and 51.75 minutes.

Find the probability of selecting a class that runs between 50.25 and 51.75 minutes.

1. Suppose that the price of Oranges is $4. In addition, suppose that the firm's total costs are $32 and that the firm currently sells 110 Oranges.

Given this information, what is this firm's total revenue?

Use the following information to answer questions 2 through 5:

The table below shows data for the production of avocados for an individual firm operating in a perfectly competitive market.

2. Given this data, complete the table:

3. At what quantity does this firm maximize its profit?

NOTE: If there are two quantities with the same level of profits, pick the larger of the two quantities!

4. What is marginal revenue at the profit maximizing quantity?

NOTE: If there are two quantities with the same level of profits, pick the larger of the two quantities!

5. What is marginal cost at the profit maximizing quantity?

NOTE: If there are two quantities with the same level of profits, pick the larger of the two quantities!  

Given below are seven observations collected in a regression study on two variables, x (independent variable) and y (dependent variable). x y 2 12 3 9 6 8 7 7 8 6 7 5 9 2 Given the followings b1 = -1.13 SSR = 50.625 SSE= 9.376 Sb1 = .2165 a. At 95% confidence, perform a t test and determine whether or not the slope is significantly different from zero. (No excel please show steps thank you)

Strickler Technology is considering changes in its working capital policies to improve its cash flow cycle. Strickler's sales last year were $2,555,000 (all on credit), and its net profit margin was 8%. Its inventory turnover was 4.5 times during the year, and its DSO was 44 days. Its annual cost of goods sold was $1,350,000. The firm had fixed assets totaling $420,000. Strickler's payables deferral period is 50 days. Assume 365 days in year for your calculations. Do not round intermediate calculations. Calculate Strickler's cash conversion cycle. Round your answer to two decimal places. days Assuming Strickler holds negligible amounts of cash and marketable securities,

Calculate its total assets turnover. Round your answer to two decimal places.

Calculate its ROA. Round your answer to two decimal places.

Suppose Strickler's managers believe the annual inventory turnover can be raised to 8 times without affecting sale or profit margins. What would Strickler's cash conversion cycle have been if the inventory turnover had been 8 for the year? Round your answer to two decimal places.

What would Strickler's total assets turnover have been if the inventory turnover had been 8 for the year? Round your answer to two decimal places.

What would Strickler's ROA have been if the inventory turnover had been 8 for the year? Round your answer to two decimal places.

I need assistance on this problem in Pseudocode and in C++ Program

1: Stay on the Screen! Animation in video games is just like animation in movies – it’s drawn image by image (called “frames”). Before the game can draw a frame, it needs to update the position of the objects based on their velocities (among other things). To do that is relatively simple: add the velocity to the position of the object each frame. For this program, imagine we want to track an object and detect if it goes off the left or right side of the screen (that is, it’s X position is less than 0 and greater than the width of the screen, say, 100). Write a program that asks the user for the starting X and Y position of the object as well as the starting X and Y velocity, then prints out its position each frame until the object moves off of the screen. Design (pseudocode) and implement (source code) for this program.

Sample run 1:

Enter the starting X position: 50

Enter the starting Y position: 50

Enter the starting X velocity: 4.7

Enter the starting Y velocity: 2

X:50 Y:50

X:54.7 Y:52

X:59.4 Y:54

X:64.1 Y:56

X:68.8 Y:58

X:73.5 Y:60

X:78.2 Y:62

X:82.9 Y:64

X:87.6 Y:66

X:92.3 Y:68

X:97 Y:70

X:101.7 Y:72

Sample run 2:

Enter the starting X position: 20

Enter the starting Y position: 45

Enter the starting X velocity: -3.7

Enter the starting Y velocity:

11.2 X:20 Y:45

X:16.3 Y:56.2

X:12.6 Y:67.4

X:8.9 Y:78.6

X:5.2 Y:89

.8 X:1.5 Y:101

X:-2.2 Y:112.2

This assignment is about Repetition Structures.

For Pseudocode, here are key words to use

: · DO … WHILE – A loop that will always run at least once ·

FOR … ENDFOR – A loop that runs until certain criteria is met ·

WHILE … ENDWHILE – A loop that runs only while certain criteria is met ·

FOREACH … ENDFOREACH – A loop that runs over elements in a data structure · BREAK - "break out" of the current loop (or other structure) you're in and start immediately after the loop · CONTINUE - skip over the current iteration of the loop and move on to the next one

Assessment

Friction

Friction resists motion. If an object is stationary, friction tries to keep it from beginning to move. If an object is moving, friction slows it down and tries to stop it.

In all cases all you need to do is add an extra arrow (vector) to your free-body diagram. This new arrow always points opposite the direction of motion. When you use Newton's law to sum the forces, there will be one more term in the equation.

The magnitude of this new arrow/term is always given by Ff = μ FN where

μ is the "coefficient of friction", a number (theat you generally look up on a table) that tells how hard it is to slide two objects in contact.FN is the "Normal Force", or how hard the surface pushes up on the object. Generally you find the Normal force by summing all the forces in the y-direction and solving for FN. Most often however, if there aren't any forces acting in the y-direction other than gravity and the normal force, then for horizontal surfaces, FN = mg. Therefore, Ff = μmgfor inclined plane surfaces, FN = mg cos θ. Therefore, Ff = μmg cos θ

Question 1 (1 point)

Match the following formulas about calculating friction:

Question 1 options:

123

Always works. FN can be found by summing all the y-dir forces, recognizing that the acceleration in the y-dir is (probably) zero, and solve for FN

123

Works whenever the surface is an inclined plane and there are no y-direction forces except for gravity and the normal force

123

Works whenever the surface is horizontal and there are no y-direction forces except for gravity and the normal force

1.

Ff = μmg

2.

Ff = μmg cos θ

3.

Ff = μ FN

Question 6 (1 point)

A 3 kg box sits on a ramp of 6 degrees where the coefficient of friction is 0.2. A 24 N force pulls the box uphill. Find the acceleration.

Your Answer:

Question 6 options:

Answer

Question 7 (1 point)

A 2 kg box sits on a ramp where the coefficient of friction is 0.4. Find the angle that will cause the box to slide downhill at constant velocity.

Hints:

constant velocity means a = 0 sum the forces (downhill pull and friction) and solve for θsin θ / cos θ = tan θtake the arctan

Your Answer:

Question 7 options:

Answer

Question 8 (1 point)

A 2 kg box sits on a ramp of 14 degrees where the coefficient of friction is 0.4. A string runs uphill over a pulley and back down to a hanging mass of 7 kg. Assuming the box on the ramp is pulled uphill by the weight of the hanging mass, find the acceleration.

Your Answer:

Question 8 options:

Answer

Question 9 (1 point)

A 2 kg box sits on a ramp of 14 degrees where the coefficient of friction is 0.2. A string runs uphill over a pulley and back down to a hanging mass of 9 kg. Assuming the box on the ramp is pulled uphill by the weight of the hanging mass, find the acceleration.

Your Answer:

Question 9 options:

Answer

Submit Assessment0 of 9 questions saved

The council of higher education wants to compare the percentage of students that score A in two universities. In a random sample of 50 students from university one, 16 received a grade of A; and in a random sample of 40 students from university two, 8 received a grade of A. The 95% confidence interval for the difference in the proportion of students who received a grade of A is:

a. -0.0638 to 0.3038

b. -0.0691 to 0.2983

c. 0.0365 to 0.04302

d. -0.0591 to 0.2991

8. Determine the desired quantity in each of the following collisions: (a) A student of mass 60kg sits on a rolling chair (assume no friction with the ground). He pulls out a fire extinguisher and fires 2kg of material at a velocity of 8m/s. How fast is he moving after this process? (b) A 90kg astronaut is traveling through space at a rate of 2m/s. He is holding a 5kg mass as he travels. How fast would he have to throw this mass in order to come to rest? (c) A box of mass 20kg slides across an icy floor at a rate of 5m/s. In order to stop it, we slide smaller boxes of mass of 0.8kg towards it at a rate of 1m/s. How many boxes must collide with (and stick to) it before it comes to a stop? (d) A football player with mass 70kg runs towards another at a rate of 4m/s. Realizing he’s about to get walloped, the second player runs towards the first at a rate of 2m/s. If the second player has a mass of only 50kg, what is the velocity of the pair after the collision? (e) Three billiard balls travel along a table. The first is moving rightwards with a speed of 2m/s, the second is moving leftwards with a speed of 2m/s, and the middle one lies halfway between the first two. What is the velocity of the ball in the middle after the collision?

(f) Alice, with a mass of 60kg, jumps upwards off the Earth. At the moment of her jump, how fast does she move the Earth in the opposite direction? (The mass of the earth is about 5.972 · 1024kg)

PLEASE COMPUTE THE FOLLOWING IN EXCEL and show the excel sheet, Thank you so much!

The following are the runs scored totals for 9 players for the 2016 New York Yankees: 56,43,63,68,58,80,71,32,19

(a) Find the mean and median

(b) Find the standard deviation of this population

(c) Considering this as a normal sample of American League players for the 2016 season, find a 99% Confidence Interval for the actual mean of Runs Scored for AL players, 2016 .

(d) Considering this as a normal sample of American League players for the 2016 season, find a 90% Confidence Interval for the actual mean of Runs Scored for AL players, 2016 .

1. A manufacturer is developing a facility plan to provide production capacity for its factory. The amount of capacity required in the future depends on the number of products demanded by its customers. The data below reflect past sales of its products:

a)      Use simple linear regression to forecast annual demand for the products for each of the next three (3) years, by using the tabular method to:

                                            i.            derive the values for the intercept and slope                               

                                          ii.            derive the linear equation

                                        iii.            develop a forecast for the firm’s annual sales for each of the next three years                                                                                                       

                    i.            Explain the difference between qualitative and quantitative approaches to forecasting.

                  ii.            Describe three (3) qualitative methods used in forecasting.                    

                iii.            Given the following data of demand for shopping carts at a leading supermarket. Prepare a forecast for period 6 using each of the following approaches:

1. A three-period moving average.                                                  
2. A weighted average using weights of .50 (most recent), .20 and .30.
3. Exponential smoothing with a smoothing constant of .40.         

                iv.            The manager of a large cement production factory in Road Town, Tortola has to choose between two alternative forecasting techniques. His production staff used both techniques in order to prepare forecasts for a six-month period. Using MAD as a criterion, which technique has the better performance record?                    

1. West Indies Batting Inc is again on the rise due to the increasing sale of cricket bats throughout the region. BATS R’ US, a cricket bat making company located in Charlestown, Nevis has been at the forefront of this increasing sales for cricket bats. The monthly demand in sales at BATS R’ US are provided in the table below.

                    i.            Compute a three-period moving average and a four-period moving average for weeks 5, 6, and 7.                                                                                          

                  ii.            Compute the MAD for both forecasting methods.                                 

                iii.            Which model is more accurate?                                                               

                iv.            Forecast week 8 with the more accurate method.                                   

1. Boi’s Car Rentals has been doing great business since acquiring a major North American car rental label. In preparation for the World Peace Summit slated for next month they need to project their demand for May. The business’ historic data is listed below:

        i.            Based on the above data calculate the demand for May using a five month moving average

      ii.            Calculate the forecast for May based on a THREE month weighted moving average applied to the following past demand data and using the weights: 4, 3, 2 (largest weight is for most recent data)?                                                                                                

    iii.            Using the exponential forecasting technique with a smoothing constant value of 0.2 and an initial value of 40, forecast the quantity of cars that will be demanded for May.