Friday
November 21, 2014

Posts by Rhea


Total # Posts: 58

Organic Chemistry
Rank the following compounds in order of increasing acidity. a. H2O, H3O-, Ho- == HO-, H2O, H3O- b. NH3
August 4, 2014

Statistic in Social Science
The verbal part of the Graduate Record Exam (GRE) has a mean of 500 and a standard deviation of 100. Use the normal distribution to answer the following questions: a. If you wanted to select only student at or above the 90th percentile, what verbal GRE score would you use as a...
April 29, 2014

geometry
An architect plans to make a drawing of the room of a house. The segment LM represents the floor of the room. He wants to construct a line passing through Q and perpendicular to side LM to represent a wall of the room. He uses a straightedge and compass to complete some steps ...
February 10, 2014

7th grade Science
1-10 complete the (%m/m) of 54.00g of AgNo3 is dissolved in 128.00g of water
May 27, 2013

maths
what are the binary representtations of the following decimal numbers? 17,29,38
March 19, 2013

maths
what are the binary representtations of the following decimal numbers? 17,29,38
March 19, 2013

Sampling Distribution
Sampling Distribution Complete solutions and illustrations are required. 2.In a study of life expectancy, it was found that the mean age at death in the Philippines was 72 with a standard deviation of 5.8 years. If a sample of 50 Filipino people is selected, find the ...
February 27, 2013

Sampling Distribution Complete solutions and illus
Sampling Distribution Complete solutions and illustrations are required. 1.The average annual salary for all U.S. teachers is $29,863. Assume that the distribution is normal and the standard deviation is $5,200. a.Find the probability that a randomly selected teacher earns at ...
February 27, 2013

Strategic Management
If you are considering opening a new pizza restaurant in your community, what would be the threat of new entrants? How would you evaluate Porter’s other forces for this industry?Explain.
December 26, 2012

physics
show that none of the principal moments of inertia can exceed the sum of the other two Please help me thank you
December 4, 2012

physics
thank you so much ^^
November 24, 2012

physics
a projectile shot at an angle of 60 degrees above the horizontal strikes a building 80 ft away at a point 48 ft above the point of projection (a) find the velocity of projection. (b) find the magnitude and direction of the velocity of the projectile when it strikes the ...
November 24, 2012

Integrated Marketing Communications
develop an IMC plan for a business.
September 14, 2012

COLLEGE ALGEBRA
a board is 15 5/8 in. long . If it must be divided into three pieces of equal length , how long must each piece be ?
June 14, 2012

math
sheila spent one-sixth of her money in one store. in the next store, she spent three times as she spent in first store, and had 80.00 left. how much money did she have at the start?
March 9, 2012

chemistry
Calculate the value of ΔHo for the reaction 2 CH4 (g) -> C2H6 (g) + H2 (g) given the following thermochemical equations: C2H2 (g) + H2 (g) -> C2H4 (g) ΔHo = – 175.1 kJ C2H6 (g) -> C2H4 (g) + H2 (g) ΔHo = + 136.4 kJ C2H2 (g) + 3 H2 (g) -> 2 CH4 (...
January 25, 2012

3rd grade math
8+8+8
November 2, 2011

alegebra 2
what is y=16x to the 2nd power-2x-5
October 27, 2011

math
farmer montague raises chicken and goats. she is not sure how many she of each animal. but she does know she has 22 animals all together. She also know that all together,her animals have 56feet. How many of each type animall does farmer montague have?
October 26, 2011

science
calculate the density of a liquid if 150g of a substance with 188mL volume
August 11, 2011

Accounting
a. IPC purchases real estate in prime locations where an existing theatre chain does not adequately serve the market. After purchasing the real estate, IPC engages a contractor to build a theatre complex. During fiscal 2009, IPC received a $2,000,000 payment from a contractor ...
April 18, 2011

Accounting
How is a contract penalty recorded for the company that hires a contractor?
April 18, 2011

Accounting
How does an inventory write-off effect the cash flow statement?
April 18, 2011

Accounting
In 2014 ABC Company reported net income of $100,000. What would be the effect on retained earnings on ABC Company's balance sheet and on its 2015 income statement if it didn't record a closing entry?
March 2, 2011

Accounting
What is the journal entry for the following? Stan opened a bank account in the name of SSRC and deposited $10,000 of his savings into the account.
March 2, 2011

Accounting
Cadzow Inc purchases all of its inventory on credit. On January 1, 2008 Cadzow had $1,750,000 of Inventory. Cost of goods Sold during 2008 was $5,650,000. The beginning and ending balances in Cadzow’s Accounts Payable account on January 1, 2008 and December 31, 2008 were...
March 2, 2011

Accounting
How do you calculate the 'Capital stock at the end of the year' with the following information? Revenues: $375,000 Expenses: $297,000 Net Income: $78,000 Retained earnings at the beginning of the year: 0 Retained earnings at the end of the year: $68,000 Liabilities at ...
January 7, 2011

Statistics
How do you differentiate between equal and unequal variances when conducting a t-test for comparing two populations?
December 10, 2010

URGENT Statistics
In performing two-tailed hypothesis test with v=20, you obtain a t-statistic of 2.41. The p-value is: Between 2% and 5%. I need help understanding how this range was gotten. I know that the t-statistic is between t.025 and t.01 and since this is a 2-tailed test these t-values ...
December 10, 2010

Physics
A 63 canoeist stands in the middle of her canoe. The canoe is 3.0 long, and the end that is closest to land is 2.6 from the shore. The canoeist now walks toward the shore until she comes to the end of the canoe. Suppose the canoeist is 3.3 from shore when she reaches the end ...
November 17, 2010

Statistics - M/C
In a version of the game of roulette, a steel ball is rolled onto a wheel that contains 19 red, 19 black and 2 green slots. If the ball is rolled 25 times, the probability that it falls into the green slots two or more times: a) is 5%. b) is 35.8%. c) is 12.7%. d) cannot be ...
October 23, 2010

Stats
Twenty-three students wrote a statistics examination having a maximum of 50 marks. The mark distribution is given in the following stem-and-leaf diagram: 0 9 1 25 2 01335889 3 001369 4 02248 5 0 Q1 is equal to: a) 15 b) 21 c) 23 d) None of the above THE ANSWER IS: C Please ...
October 23, 2010

Stats
A test has 15 true or false questions and 10 multiple choice questions (each with 4 choices). All questions are weighted equally. Jack has not studied at all for the test and randomly guesses. 1. What is the probability that Jack gets 96% on the test? a. 0.000000001 b. 0....
October 23, 2010

Statistics
19. George got 70% on an economics exam where the mean was 55% and the variance was 9. If a professor wishes to change the distribution of marks so that they have a mean of 70% and a standard deviation of 5, what will George’s new mark be? a) 95% b) 85% c) 90% d) Over 100...
October 23, 2010

Statistics - M/C
14. The marks on a statistics test are normally distributed with a mean of 62 and a variance of 225. If the instructor wishes to assign B’s or higher to the top 30% of the students in the class, what mark is required to get a B or higher? a. 68.7 b. 71.5 c. 73.2 d. 74.6 e...
October 23, 2010

Statistics
The weather forecaster reports that the probability of rain tomorrow is 10%. a. Which approach was used to arrive at this number? Was it the analytical (classical) approach, relative frequency approach or subjective approach?
October 5, 2010

Statistics
Determine whether each of the following is a valid probability distribution. a) X: 0, 2, 2, 3 P(x): .1, .3, .4, .1 b) X: 5, -6, 10, 0 P(x): .01, .01, .01, .97 c) X: 14, 12, -7, 13 P(x): .25, .46, .04, .2
October 2, 2010

Statistics - M/C
The weather forecaster reports that the probability of rain tomorrow is 10%. a. Which approach was used to arrive at this number? 1) Analytical (Classical) 2) Relative Frequency 3) Subjective
September 30, 2010

Statistics
Is the following classified as interval, ordinal or nominal data? The marks achieved by the students in a statistics course out of 100.
September 29, 2010

Statistics
n=1000, bell-shaped Mean - 5,000 ~950 lie +/-100 of 5000 -4900 to 5100 Required 1) Standard Deviation 2) 97.5th percentile value 3) Z-score for 16th percentile
September 26, 2010

Check Statistics
Calculate the first, second, and third quartiles of the following sample. 2 2 3 3 4 4 4 5 5 5 7 7 8 9 10 Are my answers correct: 25th percentile = 3 50th percentile - 5 75th percentile = 7
September 26, 2010

Statistics
A statistics practitioner determined that the mean and standard deviation of a data set were 120and 30, respectively. What can you say about the proportions of observations that lie between each of the following intervals? a. 90 and 150 b. 60 and 180 c. 30 and 210
September 26, 2010

Statistics
A friend calculates a variance and reports that it is -25.0. How do you know that he has made a serious calculation error?
September 26, 2010

Statistics
Examine the three samples listed here. Without performing any calculations, indicate which sample has the largest amount of variation and which sample has the smallest amount of variation. Explain how you produced your answer. a. 17 29 12 16 11 b. 22 18 23 20 17 c. 24 37 6 39 ...
September 26, 2010

Statisitcs
The operations manager of a large plant with four departments wants to estimate the person-hours lost per month due to accidents. describe a sampling plan that would be suitable for estimating the plantwide loss and for comparing departments.
September 19, 2010

Statisitcs
A large university campus has 60,000 students. The president of the students' association wants to conduct a survey of the students to determine their views on an increase in the student activity fee. She would like to acquire information about all the students but would ...
September 19, 2010

Sta
A regular feature in a newspaper asks readers to respond via e-mail to a survey that requires a yes or no response. In the following day's newspaper, the percentage of yes and no responses are reported. discuss why we should ignore these statistics.
September 19, 2010

Statistics
Thanks so much for the reply!
September 19, 2010

Statistics
You are shown a coin that its owner says is fair in the sense that it will produce the same number of heads and tails when flipped a very large number of times. Suppose you decide to flip a coin 100 times. a. What conclusion would you be likely to draw if you observed 95 heads...
September 19, 2010

Statistics
Thanks for the response
September 19, 2010

Statistics
Suppose you believe that, in general,graduates who have majored in your subject are offered higher salaries upon graduating than are graduates of other programs. Describe a statistical experiment that could help test your belief.
September 19, 2010

Management
Basically meaning modern organizations.
September 17, 2010

Management
What major challenges do you think are facing contemporary enterprise?
September 17, 2010

social studies
i need to know hre diffrent trading goodes for each province in canada
March 23, 2009

Science
1-10 complete the (%m)of 54.00g of AgNo3 is dissolved in 128.00g of weter
February 5, 2009

statistics
what are the variables of statistics according to functional relatipnships?
June 25, 2008

soial studies
what are some stories /myths about rhea
April 26, 2008

trig
I am having trouble figuring these two out The directions say find all solutions to the triangles described below. Round each angle to the nearest degree and the length of the missing side to the nearest tenth at the end of the computations C= 27 degrees 50 minutes, c= 349 m, ...
March 19, 2008

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