# Posts by Kevin

Total # Posts: 1,249

**Statistics**

Carol has data on the causes of violent outbursts among kindergarten children. She used a "shot-gun" approach to hypothesis testing by asking the computer to produce p-values for 300 quickly chosen hypothesis tests. She shared her glee with fellow researchers, noting...

**Statistics**

Tukey's HSD test is used a. prior to performing a one-way ANOVA. b. to determine the amount of difference between group means. c. to determine whether the overall difference among groups means is significant. d. to locate "true" differences after a significant F

**Statistics**

Given: The difference between two dependent means is statistically significant. The reason behind this outcome can be difficult to determine when a. population standard deviations are estimated from samples. b. sample size is large. c. a large value of t is obtained. d. ...

**Statistics**

Tukey's HSD test is used a. prior to performing a one-way ANOVA. b. to determine the amount of difference between group means. c. to determine whether the overall difference among groups means is significant. d. to locate "true" differences after a significant F

**Statistics**

Given: The difference between two dependent means is statistically significant. The reason behind this outcome can be difficult to determine when a. population standard deviations are estimated from samples. b. sample size is large. c. a large value of t is obtained. d. ...

**Math Help!**

-If one fish is twice as long as another,how do their weights compare? -If one fish is as heavy as another, how do their lengths compare? L- 31,33,35,37,39 W- 250,308,363,420,520

**Statistics**

In order to critical values of t to be precisely correct for testing Ho: u1-u2=0 using small independent samples, we must assume a. ó1 = ó2 b. normality of populations c. u1 = u2 d. all of the above.

**Statistics**

In one-way ANOVA involving three groups, the alternative hypothesis would be considered correct if, in the population, a. all means were equal. b. two means are equal but the third is different. c. all three means have different values. d. either (b) or (c) above is true.

**Statistics**

Professor Casey performs a t test of Ho: u1 - u2=0 using a-.01 and finds a significant difference between Xmean1 and Xmean2. From this we can infer. a. a large difference between u1 and u2. b. an important difference betwee u1 and u2. c. u1 and u2 to be unequal. d. all of the ...

**Math-Help**

A manufacturer has determined that pro t P (in dollars) is a quadratic function of dollars per month a spent on advertising. The relationship is given by p=1+50a-0.1a^2 if a is at most 500 dollars per month -How much should be spent on advertising if pro t is to be a maximum...

**Math-Help**

A rock is tossed straight up into the air. The height h (in feet) t seconds after it is tossed is given by the function: h(t)=-16t^2+100.4t+5.1 (a) Make a table of values for 0 to 10 seconds. (b) Graph the function. (c) What is the initial height of the rock? (d) When did the ...

**College Chemistry**

If 3.00 moles of NaCl were mixed with 0.9 L of 0.5 M of AgNO3, how many moles of solid would form? Include the formula for the solid.

**Statistics**

Prof. C is studying a population of the elementary school pupils in a school district with data on all its children. Another prof. suggests he calculate a confidence interval to estimate the mean age of the children. Prof C responds that it is not necessary. Explain why Prof. ...

**Stats**

Of 43 bank customers depositing a check, 18 received some cash back. (a) Construct a 90 percent confidence interval for the proportion of all depositors who ask for cash back. (b) Check the normality assumption.

**Stats**

Find the 95 percent range for the sample mean, assuming that each sample is from a normal population. a. ì = 200, ó = 12, n = 36 b. ì = 1,000, ó = 15, n = 9 c. ì = 50, ó = 1, n = 25

**Geometry**

so you'd take sin or 21 and then multiply that by 3.5, to get h, right? I did that and I got 1.25 when rounded. Is that right?

**Geometry**

A fighter plane observes a target on the ground with an angle of depression of 21 degrees. The target is 3.5 miles away along a direct line of sight. How high is the fighter plane? Round to hundredths. Please help!

**math**

Five friends each ate 2/12 of a pizza .What fraction of the pizza Is left?

**math**

There are 3 earthworms .Their length are 6 1/4 inches, 4 1/4 inches and 5 3/8 inches. What is the total length of the three earthworms.

**physics**

106984.8

**PRACTICAL ENGLISH PROCTORED EXAM**

In which of the following sentences is the verb in the active voice? A. The telephone bill was paid yesterday. B. The mother called her son for lunch. C. The boy was called by his mother. D. We were told that Jim is ill.

**C++ Programming**

create a class called DataSet. This class will have a default constructor that is empty, but an overloaded constructor that takes an integer argument and creates a vector with that many random numbers in it. For example, if I created: DataSet d1 = new DataSet(500); ...it would...

**Microeconomics**

Suppose that the price of product X rises by 20 percent and the quantity supplied of X increases by 15 percent. The coefficient of price elasticity of supply for good X is?

**math**

a team won 60% of the games they played. the lost 42 games. how many games did they win?

**science**

Which area in the United States has the highest average number of thunderstorms per year? A. Southeastern B. Northwestern C. Southwestern D. Mid-Atlantic

**science**

Which statement about supercell storms is false? A. A supercell storm can produce some of the most violent weather conditions on Earth. B. A supercell storm occurs only during the winter months. C. A supercell storm is characterized by rotating updrafts. D. A supercell storm ...

**Algebra**

Best Car rental agency charges a flat rate of $40 and 10¢ per mile to rent a standard car. A+ Rentals charges a flat rate of $35 and 20¢ per mile for the same car. a. Write an equation to represent the total cost (y) and number of miles (x) of renting from each ...

**Algebra**

Your monthly commission as an appliance sales person is represented by the equation, S = 50x+450, where 50 is the rate paid for each appliance sold, x is the number of appliances sold, 450 is the base pay per month, and S is the salary. Complete the following table to ...

**Physics**

Can an object with constant acceleration reverse it's direction of travel? I think it's yes because when a ball is thrown in the air it has a constant acceleration of gravity and the acceleration continues when it reverses it's direction. Am I right??

**Algebra**

Sally calculated that she will lose 4.6 calories per minute walking at a rate of 3 miles per hour. How many minutes does she need to walk to burn at least 250 calories?

**Algebra**

Peter is throwing a surprise party for his friend Tammy. He has a budget of $350. If the restaurant charges $20 per person for drinks and food and a cleanup fee of $35, what is the maximum number of people that he can invite to stay within budget?

**math**

the melt in your mouth chocolate factory is a rectangular building. the distance across the front of the store is 28 yards. the distance from the front to the back of the building is 12 yards. if the owners want to put up a fence around the outside of the factory. how many ...

**Studies In The American Novel**

These are questions I have pulled out from my study guide that I do not know the answers to. I would greatly appreciate it if you would correctly answer these for me since it would help me on tomorrow's test.

**Studies In The American Novel**

1) Pamela is the first American Novel True or false? 2) The early American novels of sentiment dealing with domestic situations True or false? 3) Many of the early novels were written in the form of letters True or false? 4) John Steinbeck's fiction has been considered ...

**Accounting**

On Aug 14th, One of our Partner's ( Compuville ) cash book showed a debit balance of $4,000.00. His bank statement showed a balance of $4,270.00. On comparison the following were found: * check issued amounting to $2,500.00 has not been cashed * The bank rejected checks ...

**Math - Algebra**

2and2differnce is 5

**Physics-urgent**

A speeder is driving down the road at a constant 20 m/s, he passes a patrolman parked on the roadside. The patrolman waits 3 seconds, then pursues the speeder, accelerating at a constant 4.0 m/s. How long does it take the patrolman to catch the speeder? How far has he traveled...

**sinking fund math**

Not what is quarterly payment

**Trigonometry**

Could someone please help me with the following q's I'm having some trouble: 1.) cot θ (theta) = 0.791, find sec θ and tan θ 2.) tan θ = 9/40, what is the value sin^2θ + cos^2θ

**math ergent please**

Given the function f(x)=Kx^3-mx^2+3x+7, determine the values of k and m if the remainder is -2 when f(x) is divided by x+1 and -4 when f(x) is divided by x-1

**math**

A company that manufactures a specialty line of high performance racing boats has determined that its profit margin can be represented by the equation, PM(x)=-x^3+7x^2-10x, where x is in thousands of dollars. a) graph without technology. b) determine the production numbers ...

**math**

divide the polynomial x^3-3x^2+x+2 by x+2. Express your answer in the form f(x)=d(x)q(x)+r(x).

**science**

suppose you have the 7 pieces of wood shown to the right. predict what will happen to the mass of the pieces of wood if you put them together without cutting them to make a birdhouse. explain?

**Math**

The answer to the problem is: 30

**physics**

25

**english**

Though not sedking any attention or credit, the volunteer organization was (adulated) for its many (quibbling) activities. are the two vocabulary words correct

**english**

can you help me with my last paragraph

**english**

Facebook is a site that is used by hundreds of teenagers daily for many purposes of communication. Teenagers use it for communicating with friends and family that live far away. It is also used for a way of reminding of meeting and events that are going to take place. Most ...

**english**

Facebook is a site that is used by hundreds of teenagers daily for many purposes of communication. Teenagers use it for communicating with friends and family that live far away. It is also used for a way of reminding of meeting and events that are going to take place. Most ...

**english**

can you help me with the assertion with an example can be facebook is like a calender and great for communicating with friends and family. This site gives you reminders on when events are going to happen at school

**english**

A way a cellphone creates a safety net is because it can have a safe way of parents being in contact with their kids at all times. While their kids are away from their parents, the parents will have a good way of communication of what going on with them and if they need ...

**english**

1st time

**english**

my teacher said we need to do the 3 body axes paragraphs first than go to the introduction also this is my 2st time sing this site

**english**

we need 3 body paragraphs with an axes form

**english**

my thesis is In these days technology can greatly impact teens in many advancing ways an example can be that A cellphone creates a safety net for teens and gives parents the ability to stay connected with them at all times.

**english**

i need to know how to write a axes paragraph on how technology can advance teens can you help

**english**

is ap physics very challenging and difficult because i need to know if im going to be able to go through t next term

**english**

the technolog helps advances teens

**english**

im writing an persuasive essay on technological advances help teens an i cant figure a thesis please help me with a thesis

**eglish**

1. Is their no (dissuade)Ed from attempting that difficult dive. dissuading 2 Mr. Largen wont accept your paper unless it has adequate (substantiate)substantiatation

**english**

can you check the rest the word in the paranthesis has to be ritten in a derivative way

**english**

it says only change the words in paranthesi

**english**

complete the sentence by writing the correct form of the word shown in parentheses. You may not need to change the form that is given. 1. Is their (dissuade) Ted from attempting that difficult dive. dissuading 2. That statement is absolutely (fallacy). fallacious. 3.Dr.Kims ( ...

**english**

Although she never actually said it, mom (blank) that we were going to get a pet. a=refuted b=implied c=substantiated d=inferred answer is b

**question**

if your a highschool student for the the summer can you go to community college and earn credit for highschool

**matla**

4.6 g of an oxide of nitrogen contains 3.2 g of oxygen. Calculate the empirical formula of the compound.

**Spanish**

Would it be "despedida del verano" ? Not sure.

**Spanish**

How would I say, " goodbye summer" in Spanish? Thx in advance.

**Math**

Jill and Bill are two members of the Hill family. Jill is 8 years old and Bill is 9 years old. What will Bill's age be when the total of the digits in both their ages is once again 17?

**French**

How would I say, "I love it here, like my second home" in French

**French**

Someone asked me: "t'aime le quebec?" What does that mean? How could I respond? Thx.

**Analytical Chemistry**

I use the Given concentrations? and solve for [H3O]?

**Analytical Chemistry**

Determine the pH of a solution that is generated when 2.623 g Na3PO4 is added to a 100mL of 0.0800 M H3PO4.

**math**

a manufacturer markets 2 products. each unit of Product A requires 3 hours in the moulding department, 4 hours in the Paint Shop, 1 Hour in Finishing. Each unit of B requires 3 hours in moulding, 2 hours Painting, and 2 hours finishing. Each week there are 210 hours available ...

**science**

kill yourself you muppet

**physics**

actually it is false

**science**

How many grams of glucose C6H12O6 would you need to make 250 mL of 1.0M solution?

**science**

How many moles of sucrose C12H22O11 does 300 mL of a .10M sucrose solution contain?

**math**

I am a number with 2 more tens than one. I have 5 mores ones than hundreds. the sum of my digits is 18. What number I am?

**Chemistry**

If I used 100% larger sample mass of an unknown substance what effect would that have on the empirical formula that would be obtained?

**Math**

When Sarah takes the bus to work, the trip takes 30 minutes. When she takes the train to work, the trip takes 20 minutes. The average speed to the train is 15 mph faster than the speed of the bus. Find the distance to work.

**Math**

When Sarah takes the bus to work, the trip takes 30 minutes. When she takes the train to work, the trip takes 20 minutes. The average speed to the train is 15 mph faster than the speed of the bus. Find the distance to work.

**Algebra**

A test consist of 15 multiple choice questions, 12 true-false questions and 10 fill in the bland questions. you got 8 questions wrong. what percent of the answers were correct?

**Spanish**

The 1st Sentence is me trying to do the work and the second is the actual paragraph. I am trying to put the verb form into preterite or imperfect can you see if i am right? Thanks erase una vez una nina hermosa que se llamaia Capercuita roja todos los animales del bosque ser ...

**Service management**

An outpatient clinic has kept a record of walk-in patients during the past year. The table below shows the expected number of walk-ins by day of the week: The clinic has a staff of five physicians, and each can examine 15 patients a day on average. a. What is the maximum ...

**Algebra 2**

A culture started with 2,000 bacteria. After 6 hours, it grew to 2,200 bacteria. Predict how many bacteria will be present after 12 hours. Round to the nearest whole number.

**Geomtry**

Triangle

**Computers**

Help guys..here is what I need.. and unfortunately I need this in like 2 hours...my computer crashed with all my work so please anyone help... Write a console application that has a furniture and appliance dealership needs you to create a sales screen to allow the salesperson ...

**Physics**

Consider

**statistics**

The duration of time it takes General Motors to build a car is normally distributed with a mean of 31 hours and a standard deviation of 2 hours. a) What is the probability that a single car, selected at random, will take between 28 and 34 hours? b) What is the probability that...

**statistics**

adult males have normally distributed heights with mean of 69.0 in and a standard deviation of 2.8 in. if a clothing manufacture decides to produce goods that exclude the shortest 12% and the tallest 12% of adult males, find the minimum and maximum heights that they will fit.

**statistics**

Suppose that the test scores for a college entrance exam are normally distributed with a mean of 450 and a standard deviation of 100. If a student is selected at random what is the probability that the student will score above 600?

**Physics**

Neglecting air resistance, how high could a 0.15kg baseball be thrown if it is throw straight up at a speed of 25m/s?

**math**

melissa walks 1 and a half miles to school. After school she walks 7 eights of a mile to the park. how many more miles does she walk to school?

**Math (Percentage)**

Chet bought a rug that cost $280. He had a coupon for a 10% discount. 1. How much money did he save with the discount? 2. How much did he pay for the rug?

**algebra 2**

f(x)= X-5 +2

**Mathematics**

Please help me !!!!!!!!!!!!!! a farmer wants to enclose a rectangular field he needs to put fence posts every 10 ft. how many posts will he need for 200 ft of fencing

**Math**

a farmer wants to enclose a rectangular field he needs to put fence posts every 10 ft. how many posts will he need for 200 ft of fencing

**Calculus**

F(x)= ln((3x+6)^4 (x^3 -2)^5 ) F'(x)=

**physics**

The real image produced by a concave mirror is found to be 0.303 times the size of the ob ject. If the distance from the mirror to the screen on which the image appears is 1.14 m, what is the focal length of the mirror? Answer in units of m