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Posts by Susie

Total # Posts: 302

STATISTICS
You are performing a cohort study to look at risk factors for breast cancer in postmenopausal women. If the probability of developing breast cancer among smokers is .05 for the study duration, then if you sample 100 smokers, how many do you expect to develop the disease? Give ...

STATISTICS
You are performing a cohort study to look at risk factors for breast cancer in postmenopausal women. If the probability of developing breast cancer among smokers is .05 for the study duration, then if you sample 100 smokers, how many do you expect to develop the disease? Give ...

STATISTICS
A study examining the relationship between fetal X-ray exposure and a particular type of childhood blood cancer found the following odds ratio (and 95% confidence interval) for the association: 2.44 (0.95 to 6.33). This result would likely be considered: A) clinically ...

STATISTICS
Standard error: Is always the standard deviation divided by the square root of n. Is a measure of the variability of a sample statistic. Increases with bigger sample sizes. All of the above.

STATISTICS
Which of the following would increase the width of a confidence interval? Changing from a 99% to 95% confidence level. Increasing the variability of the outcome. Increasing the sample size. Removing an outlier from the data

STATISTICS
A study was conducted to examine the peer review process. The investigators hypothesized that reviewers suggested by authors would give more favorable reviews than reviewers picked by journal editors. They obtained data on 40 manuscripts that had been reviewed by 1 author-...

STATISTICS
In a survey of 1000 registered U.S. voters, 55% respond that they support health care reform. What is the 95% confidence interval for the true percentage of U.S. registered voters who support health care reform? 50%-60% 55%-60% 51%-59% 52%-58% 49%-47%

STATISTICS
Thank you guys

STATISTICS
The following table comes from a hypothetical case-control study that compared adults with moderate-to-severe acne (cases) to adults without acne (controls). The researchers examined the relationship between smoking and acne. The prevalence of moderate-to-severe acne in the ...

STATISTICS
Assume that the probability of developing lung cancer in smokers is 15%; the probability of developing lung cancer in non-smokers is 1%; and the prevalence of smokers in the U.S. is 20%. If a person is diagnosed with lung cancer, what is the probability that he/she is a smoker...

STATISTICS
is it e or b?

STATISTICS
In a cross-sectional study of heart disease and gender in middle-aged men and women, 10% of men in the sample had prevalent heart disease compared with only 5% of women in the sample. After adjusting for age in multivariate logistic regression, the odds ratio for heart disease...

STATISTICS
But it is wrong!

STATISTICS
Thank you PsyDAG

STATISTICS
Researchers conducted a case-control study to identify risk factors for kidney cancer. They asked 50 cases and 50 controls about 100 different exposures and personal characteristics, and calculated the odds ratio for kidney cancer for each risk factor. They found statistically...

STATISTICS
In a psychology experiment in which 100 volunteers were asked to read a paragraph about an engineer, 65 assumed that the engineer was male despite the fact that the paragraph did not specify gender (and avoided gendered pronouns such as “he” or “she”). ...

STATISTICS
Researchers reported that in a sample of U.S. women aged 50 to 54 who underwent mammography, 14.4% were recalled for further evaluation; however, in a similar sample of women undergoing mammography in the United Kingdom, only 7.6% were recalled for further evaluation. What are...

STATISTICS
A particular diagnostic test for disease X has a sensitivity of 90% and a specificity of 90%. What is the negative predictive value of the test? 90% 10% 1% 18% It cannot be determined from the information given

Math
Oh, okay. That makes perfect sense. Thank you very much, Ms. Sue!

Math
would i change the fraction into an improper fraction to multiply the 57?

Math
Grace is building a brick wall along her driveway. She estimates that one row of brinks plus mortar will be 2 3/8 inches high. How many rows will she need to construct a wall that is 57 inches high?

chemistry
The combustion of 1.00 g of gasoline releases 11100 cal of heat energy. Determine the number of megajoules (MJ) released when 1.75 gallons of gasoline is burned. (Density of gasoline = 0.740 g/mL)

World Geography
d

Writing
Is this good so far? In Dr.Martin L King’s Speech, he mostly uses Logos and Pathos. As he mentions that although slavery is over, the Negroes are still not free he uses a sign of emotional feeling on how African Americans were being treated in those days,and by following ...

Writing
I Found alot of logos, and pathos in his speech.

Writing
I need help with the questions, like some kind of idea I can start off with. Please and Thank you (:

Writing
What types of appeals does King use in his speech? Which of the types of appeals that he uses are most effective? Use specific evidence from the speech to support your claims. King was an activist, but he was also a preacher. How does his job as a preacher affect how he writes...

social studies
who were the Aryans?

urgent urgent urgent
First is a build up of lactic acid from anaerobic muscle use can cause some cramping. It is produced by the rxn: CH3COCOO- + H+ +NADH --> CH3CHOHCOO- + NAD+. This is done to get rid of pyruvate from the cell (lactic acid is easier to transport out of the cell) so that ...

Chem
A student measures the following data regarding the heat of fusion of ice: 25.8 g ice at 0.0°C is placed into the calorimeter which contains 100.0 g water at 21.7°C. The final temperature comes to 1.5°C. The calorimeter has a heat capacity of 15.6 J/°C. (a) ...

college math
divide 2x^2-8x19 byx-3

Math
Prompt. Use equivalent fractions to order therse fractions from least to greatest: 2/3,1/2, 4/12, 5/6. Explain the steps you took to find your answer.

Finance
To finanance a purchase a company will sell 10 year bonds paying 6.6% per year at the market price of $1062. Preferred stock paying a $2.05 dividend can be sold for 25.93. Common stock is cirrently seeling for 54.29 per share and the firm paid a 2.92 dividend last year. ...

math
12 times x =144 does(12 times x)divided 4 =144 divided by 4

World Geography
What were the factors that played a significant role in the collapse of Russian control over Eastern Europe?

psyc
Lydia behaves appropriately only because she is aware of rewards and punishments. Which level of moral reasoning do her behaviors reflect?

com 200
Kyle has struggled to feel comfortable in science classes with labs since his junior year of high school, when a solution he was working with ignited. He was always cautious with chemicals but his lab partner that year enjoyed seeing what would happen when he mixed random ...

com 200
Concrete words have a ________________, a corresponding person or object that you can see, touch, or otherwise experience with your physical senses

Physic
The moon orbits the earth a a speed of 1.02 Kilometers per second. Use dimensional analysis to convert this speed into miles per hour. is the answer .28 m/s????

math
a rectangle has a length that is four more than three times the width. If the perimeter is 126 feet, find the length and the width

physics
An unknown force pushes a 17 kilogram block across a smooth frictionless floor. Three seconds after the force is first applied to the block , the block is moving with a speed of 6 meters per second. What is the magnitude of the the unknown force in Newtons?

OChem
A sample of limonene has a specific rotation of +81.5. (Given that R-(+)-limonene = +125.5 and, S-(-)-limonene = -122.1). What is the %ee? ______%ee What is the molecular composition of this same sample? S isomer = ______% R isomer = ______% This is how I solved for the R and ...

chemistry
A solution of 114 mL of 0.190 molecules KOH is mixed with a solution of 200 mL of 0.220 molecules NiSO4. a. write a balanced equation for the reaction that occurs. identify all phases in answer

math
Find the value of the angle data in degrees rounded to the nearest tenth of a degree.

algebra
suppose you invest $15,000 in two funds paying 11 1/2% and 14% simple interest. the total annual interest is $1950. how much is invested in each fund?

algebra
Jim was driving to an interview 72 mi away. On the first leg of the trop he drove an average of 30 mph through a long construction zone, but was able to drive 60 mph after passing through this area. If driving time for the trip was 1 1/2 hr, how long was he driving in the ...

Economics
Q = 400 - 20p TC = 10 + 5q + q2 Calculate the following: Profit max price Profit max quantity TR, TC, Profit, and the elasticity at profit max q and p.

algebra
Perform the indicated operations and simplify. y-4/y-9 - y+1/y+9 + y-99/y^2-81

physics
for 2 metal bars with one twice as large as the other of same alloy, which produces longer wavelength? highest frequency? highest velocity?

College Chemistry
metrtroll bessness collage

math
The problem describes a debt to be amortized. A man buys a house for $350,000. He makes a $150,000 down payment and amortizes the rest of the debt with semiannual payments over the next 12 years. The interest rate on the debt is 11%, compounded semiannually. (Round your ...

algebra
If license numbers consist of 3 letters followed by 3 digits, how many different licenses could be created having at least one letter or digit repeated?

area, perimeter
the perimeter of rectangle y is equal to its area. rectangle z has the same perimeter as rectangle y. the length of rectangle z is 5 inches and the width is 3 inches. explain how you can find the length and eidth of rectangle y.

Texas Government
Why should judges be appointed by experts, as explained in the Missouri plan, not by the people in open elections as we do now?

calculus
Can someone tell me how to do this type of problem? A particle moves along the curve y=sqrt(1+x^3). As it reaches the point (2,3) the y coorindate is increasing at a rate os 4cm/s. How fast is the x coordinate of the point changing at that instant?

Texas Government
Do you think the time has finally come to redraft the 1876 Texas Constitution in order to meet the needs of the growing, 21sy century Texas. Any input would be great.

mat 157
Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?

mat 157
Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?

mat 157
Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?

mat 157
Suppose that a natural number from 1 through 9 is selected at random. What is the probabiliy that the number selected is odd if you know that it is prime?

Mat 157
How many three-symbol codes (letter-letter-number) can be made from the letters, S,P,Y, and one digit from the set {0,1,2,...,9] without repetition?

math
what multiplication facts can be found using the arrays 2*9 and 5*9?

Chemistry
0.0020 mole of HCl is dossolved in water to make a 2000ml solution. Calculate the molarity of the HCl solution, the H30, and the pH. The H30 is the same as the molarity of the HCl solution.

Chemistry
A sample of 0.0020 mole of HCl is sissolved in water t omake a 2000ml solution. Calculate the molarity of the HCl solution, the (H30+) and the pH. For a strong acide such as HCl the (h30+) is the same as the molarity of the HCl solution. HCl +H20 Balanced equation H30+ +Cl

Chemisty
Kaochlor, a 10% (m/v) KCl solution, is an electrolyte solution. How many milliequivalents of K+ are in a 30 ml dose.

Government
The Farmers called our government a republic instead of a democracy because they wanted to be clear that they were creating a representative constitutional democracy and not a direct democracy. If the Framers were alive today? 1. What do you think they would say about our move...

U.S. Government
The Farmers called our government a republic instead of a democracy because they wanted to be clear that they were creating a representative constitutional democracy and not a direct democracy. If the Framers were alive today? 1. What do you think they would say about our move...

U.S. Government
Today we were asked this question in class. We were asked to ponder it over the weekend, but I'd like some views of others. If we don't believe minds are changed in deliberation, then how and why does the law change in these areas over time? Do we not get closer to the...

modern world studies
how did china and japans decisions to respond to the west affect its foreign and domestic affairs?

modern world studies
I need some help writing an essay. (This homework question was removed due to a copyright claim submitted by K12 Inc.)

ital
italian numbers 21-30

U.S. Government
Thank you for your help. I just wasn't sure which direction I really wanted to go. I needed some opinions to just need me in a direction.

U.S. Government
I'm struggling with answering this question and I would appreciate any help one could offer. I'm needing to answer the following question in paragraph form: Which one of these two philosophies do you think the Supreme Court should follow: judicial activism or judicial ...

U.S. Government
I need help answering the following in paragraph form. Which one of these two philosophies do you think the Supreme Court should follow: judicial activism or judicial restraint. I just need help figuring out where to go when answering. Thank you.

Math Problems
A worker is paid $9.80 per hour, with time and a half for any hours over 40 per week. If he works 44 hours in a week, what will be his gross pay amount?

6th grade
Say you are at a bike shop. They sell tricycles, bicycles and unicycles. If there is a total of 150 wheels and 70 seats. If there are twice as many bicycles as tricycles how many of each type of bike do you have?

xmgt216
• Write a 1,050- to 1,400-word paper addressing the following points: o Describe the moral and ethical issues faced by managers dealing with your selected topic. Include how the issue affects other individuals. o Explain how the relationship between social issues and ...

U.S. Government
Why does the Pluralist theory best describe "who holds power and influences public policy" in the U.S. today?

chemistry
zinc plus copper sulfate gives zinc sulfate plus copper

Computer Science
Hi can you guys help me with these output code, I think you need to include for loops, but I'm not sure how to use it. Example code would be helpful, thanks. Produce Output For each problem, you are to produce the code, in JAva, to create the following output to the screen...

computer science
Hi I have 3 output problems that I need assistance, thank you! Produce Output For each problem, you are to produce the code, in JAva, to create the following output to the screen. 1. + +++0 ++++++00 ++++++++++000 ... (this pattern continues forever) 2. 5 6 7 8 9 10 5 7 9 11 13...

Math
6x -5y =20 and 5y - 6x = -20 A) No Solution B) Infinity C) A Point Consistant or Inconsistant Depdendant or Independant

Chemistry
I don't know how to start this problem. Someone can help me please. One dm3 of a solution was prepared containing 0.0040 mole of Pb(NO3)2. The Ksp of PbCI2 for the existing conditions is 2.4 x 10^-4. From the list below, choose the smallest numbers of NH4CI that when added...

Algebra
Tara’s website, Garden Edibles, specializes in the sale of herbs and flowers for colorful meals and garnishes. Tara sells packets of nasturtium seeds for $0.95 each and packets of Johnny-jumpup seeds for $1.43 each. She decides to offer a 16-packet spring-garden ...

algebra
Review examples 2, 3, and 4 in section 8.4 of the text. How does the author determine what the first equation should be? What about the second equation? How are these examples similar? How are they different? Find a problem in the text that is similar to examples 2, 3, and 4. ...

Math Linear functions
How do I solve for (9,-1) and (6,-2)

college
explain what happens when i drink and eat chai tea and mixed berry scone. topic is expected to cover activation of visual, taste, olfactory receptors. thirst mechanist, digestion, absorption, effects of increased volume of blood pressure; including effects on the heart, blood ...

chemistry
If 0.385 g of gas occupies a volume of 200 mL at -73 oC and 750 torr, what is the molecular mass of the gas? a) 21.4 b) 32.0 c) 44.0 d) 48.0 Someone can help me this answer please..?

chemistry
Under laboratory conditions of 25.0 degrees celcius and 99.5 kPa, what is the maximum number of cubic decimeters of ammonia that could be produced from 1.50 dm3 of nitrogen according to the following equation: N2(g) + 3H2 (g) --> 2NH3(g) I am not sure about this. a) 3.22 ...

government
Constitutional scholars have pointed out there is an inconsistency in Justice Marshall's opinion with respect to what the constitution specifically provides. What is that inconsistency?

Accounting
I was just wondering if I was doing this right. In my accounting class we are studying furture value. I was wondering if I was doing this one right... if I was to figure out $5000 that was compounded quartery at 6% for five years, how much would that be. I did this... 5000(1....

financing
what is the value of a $50,000 10 year annuity given a 20% rate of return today?

personal finance
in this problem: if you wanted to put aside $2,000 a year for 10 years ginven a 10% rate of return (compounded monthly) Here, is it the 10 % every month, or the 10% is divided by 12 months of the year and then every month the % is 0.83%?

spanish
If I'm not mistaken mis pies grande son is my big feet are, and then in spanish you say mis zapatos which means my shoes, see if the last word in correct.

personal finance
if you wanted to save $ 50,000 to have it available in 20years provided the investment would return an APR of 12% compounded monthly. a. how much would you need to have at the beggining (lump sum) in order to achieve the mark of $50,000. b. how much would you have to save ...

Pre Algebra
A consultant traveled 9 hrs to a meeting. The return trip took only 8 hrs because the speed was 10 miles per hr faster. What was the consultants speed each way?

Physics
An air-filled parallel plate capacitor has a plate separation of b = 0.58 cm, and an area A = 280 mm2. Find its capacitance

Physics
A rectangular piece of gold is 3.8 cm long and 2.5 cm wide. How deep is the piece when it displays a resistance of R = 1.35 μω for a current that flows along the depth-direction?

Physics
A simplified model for an erythrocyte is a spherical capacitor with a positive inner surface of area A and a membrane of thickness b. Use potential difference of 86 mV across the membrane and a dielectric constant K = 5.0. If the capacitance of the membrane is C = 0.2 pF, ...

Physics
Any dielectric material other than vacuum has a maximum electric field that can be produced in the dielectric material before it physically or chemically breaks down and begins to conduct. This maximum electric field is called dielectric strength. The dielectric strength for ...

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