Thursday

September 29, 2016
Total # Posts: 2,540

**statistics**

whether it is one-tailed or two tailed? and if one tailed...I do agree with you now that this is the left tail test. However I am not sure how to handle negative value on t. Here is what I did. I used formula for hypothesis test with mu unknow, t=(xbar-mu)/(sd/sqr n)=(26-25.02...

*November 30, 2013*

**statistics**

what test are you using? This is very confusing!

*November 30, 2013*

**statistics**

Ala rge fleet of cars is maintained with an average of 26 mpg. 50 recent trips displayed a mean of 25.02 mpg and standard deviation of 4.1 mpg. At the 5% level of significance, is their evidence the company has failed to keep their fuel goals? I did the math and got .03380315...

*November 30, 2013*

**Statistics**

Thank you, I got the same answer, but I thought that because the sample size was less than 30, there was something I missed.

*November 29, 2013*

**Statistics**

Hello, my problem is I have a random sample of only 15 sales average is $115 with a known population standard deviation of $25.00. Obtain a 92% confidence interval and explain what your answer means. I am not sure what to do because the sample size is only 15. Thanks for your ...

*November 29, 2013*

**Finance**

Buy a stock for $35 a share, hold it for 3 years, and then sell it for $75 a share (the stock pays annual dividends of $2 a share).

*November 24, 2013*

**Math **

1. Jill has a bond with a face value of $1,000. The bond has a coupon rate of 6%. Find her current yield if the market price of the bond is $1,027. 2. Calculate the annual interest you receive on a $1000 Treasury bond with a current yield of 1.5% that is quoted at 98 points. I...

*November 18, 2013*

**chemisty**

When magnesium metal and an aqueous solution of hydrochloric acid combine, they produce an aqueous solution of magnesium chloride and hydrogen gas. Using the equation, Mg (s) + 2HCl (aq) MgCl2 (aq) + H2 (g), if 24.3 g of Mg and 75.0 g of HCl are allowed to react, calculate the...

*November 17, 2013*

**Math Help**

Wow it's a shame that I can't get help:(

*November 16, 2013*

**Math Help**

Does anyone know about this? This is really hard and I'm in lots of need:)

*November 16, 2013*

**Math Help**

This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS). Please answer this ASAP! Thank you so much whoever answers! :)

*November 16, 2013*

**physics**

a toy rocket is fired upward with a net force of 50N. Because of this force it accelerates at 25m/s^2. What is the mass of the rocket?

*November 16, 2013*

**Math**

1. You need $200,000 to retire in 10 years. You can invest monthly amounts at 5% APR at work. How much should you contribute each month? 2. A friend creates an IRA with an APR of 6.25%. She starts at age 25 and deposits $50 per month. a) How much will her IRA contain when she ...

*November 14, 2013*

**Calculus**

A ladder 15 feet long leans against a vertical wall. Supppose that when the bottom of the ladder is x feet from the wall, the bottom is being pushed towards the wall at the rate of 1/2x feet per second. How fast is the top of the ladder rising at the moment the top is 5 feet ...

*November 11, 2013*

**MATH MATH MATH**

Mortgage lenders base the mortgage interest rate they offer you on your credit rating. This makes it financially critical to maintain a credit score of 700 or higher. How much more interest would you pay on a $195,000 home if you put 20% down and financed the remaining with a ...

*November 9, 2013*

**Physics**

Identical twins, each with mass 51.0 kg, are on ice skates and at rest on a frozen lake, which may be taken as frictionless. Twin A is carrying a backpack of mass 12.0 kg. She throws it horizontally at 3.00 m/s to Twin B. Neglecting any gravity effects, what are the subsequent...

*November 8, 2013*

**Physics**

Identical twins, each with mass 51.0 kg, are on ice skates and at rest on a frozen lake, which may be taken as frictionless. Twin A is carrying a backpack of mass 12.0 kg. She throws it horizontally at 3.00 m/s to Twin B. Neglecting any gravity effects, what are the subsequent...

*November 8, 2013*

**Math**

Assume that the mean salary for a profession is $35,104 with a standard deviation of $3200. What percent of the profession earns less than $38,700? I dont understand how to do this. Please help!!

*November 7, 2013*

**Math**

Given 15 data items: 11, 15, 13, 16, 8, 8, 9, 10, 11, 4, 9, 6, 8, 3, 17 Calculate the: range variance standard deviation first quartile second quartile (median) third quartile My answers are: 1. Range :14 2. Variance: 15.7 3. 3.96 4. 8 5. 9 6. 13 I just want someone to check ...

*November 5, 2013*

**Math**

Find the mean, median, and mode of the following: 11, 15, 13, 16, 8, 8, 9, 10, 11, 4, 9, 6, 8, 3, 17 I got.. Median=9 , Mode= 8 I am confused about the mean I got 9.8666666 ...Do I need to round this to 9.8 or 9.9 or 10 ?? Thanks for the help

*November 5, 2013*

**Statistics**

True 1. CORRELATION Correlation means that two variables (sets of data) have some type of association with each other, such that as one variable increases, the other also increases (a positive correlation), or decreases (a negative correlation).

*November 5, 2013*

**Health**

Reduces stress,lowers blood pressure

*November 5, 2013*

**physics**

A person drives a car around a circular cloverleaf with a radius of 63 m at a uniform speed of 10 m/s. (a) What is the acceleration of the car?

*November 4, 2013*

**your going to get in troubel**

ur going 2 get in troble

*November 2, 2013*

**Math**

4(7-y)= (4 x 3k) + (4 x 4)= 6(2 + 4x)= (5 x a) + (5 x 2)=

*October 29, 2013*

**Math**

Write an expression for the word phrase. r divided by 2

*October 24, 2013*

**math**

If I am in a canoe race and my friend is a half mile ahead of me, if I paddle at 3.4 miles per hour and he paddles at 3miles per hour, when will i catch him?

*October 22, 2013*

**French**

The word is nusiditaco and I need it unscrambled

*October 19, 2013*

**vocab**

d.intrigued

*October 14, 2013*

**english**

b for quesstion#7

*October 11, 2013*

**algebra**

can some one tell me the simplified cube radical form of (64x^3y^7)^1/3

*October 9, 2013*

**math**

Round 9.46531 to nearest hundredth.

*October 9, 2013*

**Business Statistics**

Using the telephone numbers listed in your local directory as your population, randomly obtain 20 samples of size 3. From each telephone number identified as a source, take the fourth, fifth, and sixth digits. Calculate the mean of the 20 samples Draw a histogram showing the ...

*October 8, 2013*

**math**

Round 9.46531 to nearest hundredth.

*October 7, 2013*

**math**

what is m4 (m to the 4th power)

*October 7, 2013*

**poetry**

I need help with the last question for this as well. Also i am confused about the mood and tone of the poem. I thought that the tone was calm and passive can the mood be the same thing?

*October 7, 2013*

**Math**

A customer needs 88 ,2 inch pipe connectors to Complete a project. How many Bags of connectors would you recommend the customer purchase if each bag includes 25 connectors

*October 1, 2013*

**Math**

A customer needs 88 ,2 inch pipe connectors to Complete a project. How many Bags of connectors would you recommend the customer purchase if each bag includes 25 connectors

*October 1, 2013*

**chemistry**

Identify the neutral element represented by this excited-state electron configuration, then write the ground-state electron configuration for that element. Excited State: 1s2 2s2 2p2 3s1 Element Symbol: ? Ground State: ?

*September 30, 2013*

**Chemistry**

Some bacteria get their energy from reduction of CO2 to CH4 by H2. 1. How many electrons are required to reduce CO2 to CH4? 2. Calculate the G for formation of methane based on the two standard reduction potential of -0.171V for reduction of CO2 to CH4 and -0.414V for ...

*September 29, 2013*

**EDU 490 Interdisciplinary Capstone**

Shelby teaches 9th grade Social Studies at a small high school in the rural plains of Kansas. Most of her students are farm kids who will end up working their parents’ farms for the duration of their time in Kansas. In order to make use of the abundant knowledge related ...

*September 23, 2013*

**psy202**

SO I THINK IT WOULD BE A

*September 17, 2013*

**psy202**

i thing it is b

*September 17, 2013*

**psy202**

which of the following do experts recommend regarding the search for information on the internet avoid boolean operators since new technology has made them obsolete stick to one search engine like google so that bookmarks are better organized bookmark any site that has ...

*September 17, 2013*

**psy202**

according to your text research on adult think and behavior has found that specific child-rearing practices of parents have great influence how parents feel about their children has great influence development is predictable when all children are treated the same all of the ...

*September 17, 2013*

**Math**

Find the distance between ordered pairs: (-6,10) and (-2,10)

*September 16, 2013*

**Math - Averages**

88

*September 13, 2013*

**accounting**

60,000

*September 11, 2013*

**math **

Jessica and her seven friends share 3 liters of apple juice equally. How much juice does each friend get.

*September 10, 2013*

**english**

A common solecism is a=I don't need any b=I don't got none c=I don't have any d=I don't want it

*September 9, 2013*

**english**

A common solecism is a=i dont need any b=i dont get any c=i dont want it

*September 8, 2013*

**Math**

Arturo Muina is the captain of a charter fishing boat. He is paid a salary of $140 per day. He also averages tips amounting to 12% of a $475 daily charter rate. Last month during a fishing tournament, Arturo worked 22 days. What were his total gross earnings for the month?

*September 6, 2013*

**Macroeconomics**

Dave is buying pizza and soda. Suppose that a slice of pizza and a can of soda each cost $4 Let E be the amount in dollars that Dave spends on pizza and soda. If Dave buys P slices and S cans of soda, which one of the following equations correctly describes the amount of money...

*September 5, 2013*

**Medical**

Sorry about that, that was part of the question which relates to this question; As a health care administrator, how important is having the ability to read medical charts and reports? Why can abbreviations in charts be a cause of concern? How would you ensure that your staff ...

*September 3, 2013*

**Medical**

As a healthcare administrator, the ability to read medical charts and reports is very important. It assists you in understanding the details on each patient's medical reports. [ By understanding this, you will be able to come up with strategies of organizing medical ...

*September 3, 2013*

**math**

what is the portion if the base is 900 and the rate is 12 3/4%

*September 2, 2013*

**algebra**

i came up with B

*August 30, 2013*

**algebra**

paul charges $2.25 per week for daily plus sunday delivey, and $1.00 per week for sunday deliver only a:40[$2.25)+25($1.00) b:40($1.00)+25($2.25) C:40($1.25)+25($2.25) D:65($2.25)

*August 30, 2013*

**MATH**

You have a bag of marbles containing 13 red marbles, 8 green marbles, 7 yellow marbles, and 7 blue marbles. What is the probability of drawing a green marble, putting the marble in your pocket and then drawing a yellow marble?

*August 29, 2013*

**Math**

Can anyone solve 4/3=2/15j?

*August 27, 2013*

**statistic**

The random variable x represents the number of boys in a family with three children. Assuming that births of boys and girls are equally likely, find the mean and standard deviation for the random variable x.

*August 20, 2013*

**PM**

What is a home builders sample work package

*August 15, 2013*

**math**

How a write 3,552,308,725 in word form

*August 14, 2013*

**Statistics**

A box contains 10 items, of which 3 are defective and 7 are non-defective. Two items are randomly selected, one at a time, with replacement, and x is the number of defective items in the sample. To look up the probability of a defective item being drawn from the box, using a ...

*August 8, 2013*

**PM**

J. Wold. project manager of the Print Software, Inc., wants you to prepare a project network; compute the early, late, and slack activity times; determine the planned project duration; and identify the critical path. His assistant has collected the following information for ...

*August 7, 2013*

**PM**

You are creating a customer database for Modesto Nuts minor league baseball team. Draw a project network given the information below. Complete the forward and backward pass, compute activity slack, and identify the critical path. How long will this project take? How sensitive ...

*August 1, 2013*

**Algebra**

Is the cube root of -1/1000 q^36 -1/10q^12? Am I right?

*July 15, 2013*

**Algebra**

True or False. 1. If q is negative, then the square root of q^2 = q. 2. If r is positive, then the square root of r^2 = -r.

*July 14, 2013*

**Algebra**

Simplify ..... 1. the square root of the cube root of 49a^2z^4 2. the fourth root of (d-3e)^2 3. the square root of the the square root of 16b^12c^4

*July 14, 2013*

**math**

1. The greater of two integers is 4 times the lesser. Of the lesser integer is increased by 12, the result is 3 less than the greater.Find the integers. 2. Tom is three times as old as Leigh Ann. In 7 years, the sum of half of Tom's present age and a third of Leigh Ann'...

*July 14, 2013*

**Algebra**

1. what is the 6th root of 8j^6k^3m^3n? 2. What is the fourth root of 4f^2g^2?

*July 14, 2013*

**Chem**

I was asked to list materials with different structures and exhibit different properties. I thought of water and salt, muriatic acid and laughing gas. Am I correct? I need two more. Please help.

*July 12, 2013*

**Chem**

What does it mean when they say materials with the same properties but with different chemical composition? Can you give examples so that I can fully understand?

*July 12, 2013*

**Law and Ethics in medicine**

my answer A Which of the following should you not when correcting record. A. Obliterate the error B. Date the correction C. Have the correction witnessed and initialed D. Explain why the correction is being made My answer A 4. Which of the following is true regarding consent ...

*July 11, 2013*

**Law and Ethics in medicine**

Elizabeth says duty of care is the obligation health care workers have toward patients. Randy says professional etiquette is the obligation health care workers have toward patients. Who is correct? A. Only Randy is correct B. Neither is correct C. Only Elizabeth is correct D. ...

*July 11, 2013*

**Algebra**

Simplify the square root of of the fifth root of 64q^8v^6 or (√^5√64q^8v^6).

*July 11, 2013*

**MUSIC**

What is meant by Caribbean music in a new mode What emphasis, in this chapter, seems to justify a departure from traditional presentations of music and culture of the Caribbean?

*July 9, 2013*

**Algebra 1A**

What are some suggestions for new students starting a math class? Creating a list of three to five important requirements.

*July 8, 2013*

**medical coding**

While running, a 10-year-old boy began choking on a small latex ballon and was rushed from the amusement park to the emergency deparmtent. The balloon is lodged in the trachea just past the larynx and threatening to obstruct her breathing. The piece of latex balloon is ...

*July 7, 2013*

**Algebra 1A**

I am trying to simplify the factors -7/-6 in the problem -7k^7 m^7/ -6k^8 m^9. What is the correct answer? So far I have -7/-6km^2 my only problem tends to be simplifying -7/-6km^2

*July 6, 2013*

**Health care**

1. Wrongful death statutes create a right to collect damages for A. loss to the patient's estate of future earnings. B. loss to familial quality of life. C. punitive damages D. pain and suffering of the patient. My answer A 2. Elizabeth says duty of care is the obligation ...

*July 5, 2013*

**Algebra 1A**

Thanks Reiny,that is my only problem trying to figure out the equation. I just cannot figure out for some reason when getting the intersection, I tried several different ways yet my progress is still the same.

*July 3, 2013*

**Algebra 1A**

When graphing the inequalities 9x+8y<72 and -7x-4y<=28 what would be the solution set? Also what would be thier intersection?

*July 3, 2013*

**math**

The student in Question 5 from Module 18 decides to conduct the same study using a within-participants design in order to control for differences in cognitive ability. He selects a random sample of participants and has them study different material of equal difficulty in both ...

*June 29, 2013*

**Algebra 1A**

What do you do to graph (and shade) a system that does overlap?

*June 27, 2013*

**Algebra 1A**

How many solution sets do systems of linear inequalities have? Do solutions to systems of linear inequalities need to satisfy both inequalities? If so what are some examples?

*June 26, 2013*

**college physics**

an atwood machine is constructed by mounting a well-lubricated pulley (not necessarily a ring/disc), whose radius is 6.00cm on an axle and passing a rope over the pulley. Each end of the rope is attached to a different mass of 3.0 kg and 2.0kg so they both hang vertically. ...

*June 25, 2013*

**CHEM**

How many kilojoules are released when 85.0g methanol is burned?

*June 25, 2013*

**Eng/102**

I'v never done a full-sentence outline before and I don't know how to even get started

*June 24, 2013*

**Eng/102**

I need help with Create a full-sentence outline that includes effective arguments and counterarguments to support your thesis. Outline only the body of your paper. Remember to avoid bias and fallacies and to include rhetorical devices that strengthen your writing. Address the ...

*June 24, 2013*

**Math Algebra 1A**

How do you type the time measured in years when it involve the year 1995?

*June 22, 2013*

**Law and Ethics**

1. An insured patient pays a flat fee for certain services. The amount that the patient must pay is the . A. deductible B. copayment C. formulary D. coinsurance My answer B 2. Ravi and Juli are discussing the National Practitioner Dta Bank. Ravi says that undesirable licensure...

*June 21, 2013*

**Law and Ethics**

7.My is B 11. A

*June 20, 2013*

**Law and Ethics**

1. Rollo says that the standard of behavior required in specific situations that arise in medical office is referred to as protocol. John sys its precedent. Who correct A. Both are correct B. Only John is correct C. Only Rollo is correct D. Neither is correct My answer is C 2....

*June 20, 2013*

**Math Algebra1A**

A total of $12,000 is invested in two funds paying 9% and 11% simple interest. If the yearly interest is $1,180, how much of the $12,000 is invested at each rate? There seems to be a decimal in this problem if so how do I get rid of it verifying x,y?

*June 20, 2013*

**Math Algebra1A**

What are two symbolic techniques used to solve linear equations? The only thing I find is eliminating or substuting is that right?

*June 20, 2013*

**Math Algebra 1A**

How do you solve answers for x and y? 2x - 4y = 10 x + 5y = -9

*June 20, 2013*

**World History **

In China, the rise of the idea of a new Buddha who would inaugurate a golden age and give power to his followers led to A. a resurgence in the power of Confucian elites. B. the rise of the Ming dynasty. C. the rise of the Yuan dynasty. D. a revolution in religious belief. My ...

*June 18, 2013*

**grade 10 math**

i really appreciate this

*June 18, 2013*

**grade 10 math**

so.. solving for x.. does not give a whole number?

*June 18, 2013*