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 .

Abby’s candle shop sells candles. Abby would like to estimate her income and sales, she has collected data from the last two months. The cost of each candle is $1 and she sells them for $2.50 each. She receives her candles every day from her supplier, the supplier brings in 500 candles a day for Abby to sell. If Abby runs out of candles she estimates that an unhappy customer will cost her $0.50. If Abby has to keep the candles for the next day she has a holding cost of $0.25 per candle. The demand for candles is a uniform distribution of between 400 and 550 candles a day. Simulate 100 days of sales, find the average income, the average holding cost and the average loss in good will.

Complete in Excel