1. statistics

    A university dean wishes to estimate the average number of hours his part-time instructors teach per week. The standard deviation is 2.6 hours. How large a sample must be selected if he wants to be 95% confident of finding whether the true mean differs
  2. Conclusions

    You expect to get forty miles to the gallon in that? Why, that old wreck has a monster V8; besides, it's fifty years old and needs an overhaul. I state possibly true or possibly false due the gasoline that was made then vs. now. Also, cars or trucks in
  3. chem

    A) Athletes that have to compete at high altitudes often go to the location and train for a month or so at these reduced pressures. This would be true of mountain climbers as well. What happens to the body that allows it to compensate ( over this period of
  4. creative play

    Which of the following is a true statement about brain research? A. Early social and emotional experiences are the seeds of human intelligence. B. Different regions of the brain are actively developing and maturing according to certain timetables. C.
  5. Statistics

    According to internal testing done by the Get-A-Grip tire company, the lifetime of tires sold on new cars is normally distributed with a mean of 23,000 miles, with a standard deviation of 2500 miles. If the claim by Get-A-Grip is true, what is the mean of
  6. English

    Question about the short story the Wager by Anton Chekhov: The climax comes at the end of the middle section of the story after which the author "ties up loose ends" by telling the reader what happened to each major character. True or False I am really
  7. statistics

    Dylan wants to determine a 90 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must he have to get a margin of error less than 0.03? [To find n, use the
  8. AP European History

    Help! What is the appropriate relationship between people and their government? Does true democracy exist in Europe? Should it? do you feel that these are merely opinion based questions up for debate? or do you feel that my teacher is asking for specific
  9. American Government

    Which is true regarding the nation’s environmental policy? a. The first major steps by the national government to clean up the environment began in the early 1900s. b. A majority of the public is sympathetic to environmentalism. I would say B is the
  10. gr 12 chem

    true or false- correct/explain those that is false Benzene is generally more reactive than alkanes and less reactive than alkenes because of the bonding in its aliphatic ring The polymer produced from polymerization of H2NCH2COOH is......? Write out the
  11. US GOVernment

    Which of the following is NOT true of third parties? a. They have never gotten over 10 percent of the popular vote. b. They are formed by independents. c. A majority of Americans favors the idea of a third party. d. They have seldom won electoral votes in
  12. L.A.

    is this a good beginning?!??! The movie, "Swing Kids", is not a light hearted, family film, but rather one that provokes deep emotions and thoughtful thinking within the viewer. This movie contains interesting information that shows the viewer how
  13. chemistry

    The earliest societies of Mesopotamia believed their rulers had divine right (1). As these societies grew in size, more complex governments and bureaucracies emerged (2). As a result, ancient Mesopotamia became the birthplace of a secular society that
  14. Proof by contradiction

    Prove that there exists no positive real number such that: 4x^2+1/4x <1 Can I simplify this inequality in the following way: multiply both sides by 4x so we have. 4x^2+1 <4x+1 Which renders the original statement false as 4x^2+1 cant be less than
  15. SPANISH

    TRUE OR FALSE All pharmacies in Latin America operate in much the same way as do those in U.S. false? "En algunas farmacias, también ponen inyecciones. Si te enfermas y sabes lo que necesitas, puedes ir a una farmacia donde se ve el letrero inyectología
  16. PLEASE CHECK OPERATIONS WITH FRACTIONS

    1. 619.5 km=__m A, 0.6195 B, 61.95 C, 61,950 D, 619,500*** Write the metric unit that makes the statement true. 2. 5,941 mm= 5.941__ (1point) A, m*** B, km C, cm D, dm Use benchmarks to estimate the sum, difference, or product. 3. 1 7/8+1/9 A, 0 B, 1 C, 2
  17. Social Studies

    Which of the following is true of the Industrial Workers of the World (I.W.W.)? A. It had very little influence over the labor movement. B. It was founded in Russia. C. It was devoted to organizing highly skilled immigrant workers. D. It made business
  18. Math

    Help lesson 10 tools of geometry help been on to 1 hour plz help!no pics 1.what is the Vaule of x in the diagram shown below 2.which term correct ly describes the figure shown below 3.which statement is true 4.which is rhe best description of triangles ABC
  19. US history

    1. In the early years of the war, all reports coming to the USA had to be “cleared” through England. 2. In the 1916 presidential election, Republicans used the slogan “He kept us out of war” against Wilson. 3.Wilson’s Fourteen Points called for
  20. history

    Which of the following is true of the Industrial Workers of the World (I.W.W.)? A. It was founded in Russia. B. It made business leaders create new methods to deal with labor issues. C. It had very little influence over the labor movement. [D. It was
  21. com156

    The Dark Knight was the most popular film of 2008. [Stating it was the most popular film of 2008 is a big statement that needs supporting documentation. Also be sure to indent the first line of each paragraph] Unlike most popular summer movies it was also
  22. STATISTIC

    Mrs. Carlson has discovered that the students in her class who watch a larger amount of television do more poorly on her exams compared to those who watch a smaller amount of television. Which of the following conclusions can Mrs. Carlson draw? Explain
  23. science

    Is it TRUE that a Cruise Liner, QE2, moves only 12 inches on 1 gallon of diesel fuel? http://www.google.com/search?hl=en&lr=&safe=off&as_qdr=all&q=+%22Cruise+Liner%2C+QE2%22+inches
  24. mATH..OHHHH NOOOOO PLEZ HELP I AM STRUGGLING

    Which statement is true? 1. all rectangles are squares 2. some trapezoids are parallelograms 3. all squares are rhombuses 4. no rhombuses are rectangles. Please help me. I need this done and fast. Mom don't know answer so I'm counting on you to help me.
  25. 11th grade

    Suppose you surveyed 50 students and 34 said that they approve of how the president is doing. Construct 90%, 95%, and 99% confidence intervals for the true proportion of students in your school who approve of how the president is doing. Be sure to
  26. Language Arts

    Which of the following statements about a short story plot is not true? (1 point) The plot has a beginning, middle, and end. The plot is when and where the story takes place. The plot usually starts with a problem and ends with a solution.
  27. science

    a storage cell produces current through chemical reactions that can be reversed? true? a primary cells produces current thur chemical reaactions that continue until one or more reactants is used up? false? i am on the right track?
  28. math

    Describe two ways to determine whether or not a given point is a solution of a line. Which way is more accurate? Why? The only practical and fast way is to substitute the coordinates of the point into the equation. If the equation is "true", then it is a
  29. english

    Which is true of a literary argument? a. It should be impassioned in tone. b. It must be made by literary critics. c. It is a disagreement between two literary works. d. None of the above I am thinking the answer in D because a literary argument is making
  30. Statistics

    Can someone explain to me how I got this question wrong? True/False. It is easier to reject the null hypothesis if the researcher uses a smaller alpha(a) level? I said False As alpha decreases, the rejection region also decreases.
  31. Statistic Psychology

    Joe had a score of 72 on the Counseling Aptitude Scale, and the standard error of measurement of the scale is 3. Where would we expect Tom’s true score to fall 99.5 percent of the time? a. 71 to 73 b. 69 to 75 c. 66 to 78 d. 63 to 81 I selected A because
  32. Biology HELP!

    Which of the following is true? Mark all that apply. (2 points) A hypothesis can be proved incorrect through experiment. Conclusions cannot disprove a hypothesis. Conclusions are made based on the analysis of data. Opinion is used to analyze data. A/D
  33. Social Studies

    true or false: many cowhands on the cattle drives were chinese imigrants, african americans,or veterans of the confederate Army. I guessed false and instead of chinese imigrants, i think it's Vaqueros? but i don't know?
  34. Math 6th Grade

    Can someone please help I been trying to figure this out for a long time and you guys help me? 2. Which of the following is a true statement? (1 point) A.) |–2| < |1| *** My answer B.) |1| < |0| C.) |–1| < |–2| D.) |1| > |–2|*** My
  35. economic

    “Dependency” theorists believe that moving surplus labor from agriculture to industry where that labor will earn profit that can be reinvested for further growth is the key to overall economic growth and developement. Is this true or false? Explain
  36. algebra

    Suppose the singers true love gave presents for n days instead of 12 days what would the toatl number of gifts given on the nth day be?she told us that the sum of consecutive integers from 1 to n is n(n+1) over 2 Someone told me n= 12 and the sum is = to
  37. Computer Science

    when testing for a fever, what is the true positive rate for a thermometer that always reads 105 F? What is the false positive rate? **Note: the definition of fever is that the patients temperature exceeds 100 F**
  38. Chemistry

    Which of the following statements is not true of nuclear fusion? A. It involves the joining of two atoms together into one new atom. B. It occurs in the sun and other stars. C. It only occurs in very large, heavy atoms. D. It releases very large amounts of
  39. literature

    True or False? In "Rights of Women," Anna Letitia Barbauld concludes that women will be far less satisfied in fighting for their "rights" against men (as Wollstonecraft did) then with acting in love toward men, as Nature created them to do.
  40. math

    1)The function f is defined by the equation f(x)+ x-x^2. Which of the following represents a quadratic with no real zeros? A)f(x) +1/2 B)f(x)-1/2 C)f(x/2) D)f(x-1/2) 2) If I^(2k) = 1, and i = radical -1, which of the following must be true about k? A) k is
  41. stats

    A human resources manager at a large company wants to estimate the proportion of employees that would be interested in reimbursement for college courses. If she wishes to be 95% confident that her estimate is within 5% of the true proportion, how many
  42. 11th grade Algebra II

    if the roots of ax^2+bx+c=0 are real, rational, and equal, what is true about the graph of y= ax^2+bx+c? 1.) it intersects the x-axis at two distinct points. 2.) it lies entirely below the x-axis 3.) it lies entirely above the x-axis 4.) it is tangent to
  43. (expi)^i

    can someone tell me how can we calculate (expi)^i. there is one thought to say that it is equal to exp(-1) but this is not true. i think that one has to use the euler's equation : exp(ix)=cosx+isinx. but in this case, x=1? and how can we calculate after
  44. Algebra

    Volume and surface area are often compared by manufacturers in order to maximize how much of something can go inside of a package (volume) while keeping how much material is required to create the package (surface area) low. Pick a product that might be
  45. Econ MC

    1. According to the median voter theorem, majority rule will a. always produce an inconclusive outcome. b. produce the outcome least preferred by the median voter. c. produce the outcome most preferred by the median voter. d. produce an outcome that is
  46. college statistics

    I am having a bit of trouble with some of the questions. Some of the ones I put below have an answer, is there anyway you can check the answer and help me with the rest I am having trouble with. Your sociology teacher claims that 60 percent of American
  47. algebra 2

    factor completely 3x^2-14x-24 I do not see the gcf for the problem I am totally lost can some explain please I have several these problems and i need to figure out how to solve them You put 3x^2-14x-24 = (a x + b)(c x + d) Equating the coefficients on both
  48. Physics

    Is it true that with buoyancy, the weight of the displaced water equals the weight of the complete object, even if only a part of the object is submerged? If so, why, since the weight of a larger object would be greater than that of a smaller one?
  49. technical drawings

    a circle of diameter 80mm and a line BC. The ratio of the circle to the line BC is 7:5. what is the true length of the line from the center of the circle.2. what is the actual diamter of the cirlce. thanks
  50. Math

    Consider ∠C such that sin C = 7/25 a) What are the possible quadrants in which ∠C may lie? b) If you know that cos C is negative, how does your answer to part a) change? c) Sketch a diagram to represent ∠C in standard position, given that the
  51. english

    1. Which of the following statements about Saadi's sayings is not true? A) They offer practical advice. B) They use simple language. C) They were composed in a time of chaos. D) They were written for other mystics. 2.What is a rubáiyát? A) a Chinese poem
  52. CHECK PLEASE

    I think its B only Which statements are true about the agricultural revolution? Choose all answers that are correct. A. It occurred at different times in different places over many years. B. It changed people's lives because they now had nearly complete
  53. Math

    TRUE OR FALSE ? Justify your answer. a. There exist real numbers a and b such (a+b)^2 = a^2 + b^2. b. For any real number x, there exists a unique number -x such that x + (-x) = 0. c. Any integer n is either odd or even. d. Any real number x can be written
  54. Chemistry

    I: The standard reaction free energy at equilibrium is zero. II: A reaction stops when the equilibrium is reached. III: An equilibrium reaction is not affected by increasing the concentrations of products. Which of these statements is/are true?
  55. News/stereotype more

    OK I have a my example On August 16, 2013, three teens -- one white, and two black shot -- and killed Christopher Lane, an Australian attending school in Oklahoma, while he was out for a jog. Fox and Friends and The Daily Caller have compared it to the
  56. health pllz help me i have trouble

    1. Haley is excited about a new activity she learned about while surfing the Internet called orienteering. Which community group would most likely be able to give her a good start in this activity? (1 point)church youth group dance team drama club Girl
  57. biology

    The plasma membrane: Tick the box next to the ONE answer you believe is TRUE. A. can generate action potentials in excitable cells B. may burst in hypertonic extracellular solution C. can contain carbohydrates which confer ion permeability. D. is made up
  58. physics

    which is true consdering torque and angular momentum: 1. spinnng figure skaters tuck their arms in to stop. 2. a high diver can flip forward faster than he can spn around the axis runnng from his head to his feet? 3. it is easier to turn the rudder on an
  59. Algebra

    A. "Solve for w: (6w+1)/5≠2. Describe the solution in set notation." First I must find what number to substitute for "w" that WILL equal 2, correct? Then, determine the numbers that won't (I assume there will be far more of these)? What would be the
  60. Logic

    As part of its reorganization, company X created five new positions within the company. However, after the reorganization was complete, company X had fewer employees than before the reorganization. Which one of the following, if true, would best explain
  61. math(urgent)

    $1000 was invested for two years at 10% simple interest .calculate the effective rate was earned. pls check my solve (1+0.1/2)^2-1 = 0.1025 but the true answer is 9.54% pls help me to get the formula of effective rate
  62. ncu

    a health care professional wishes to estimate the birth weight of infants how large a sample must she select to be 90% confident that the true mean is within 6 ounces of e sample mean. the standard deviation of birth weights is is known to be 8 ounces
  63. Finance

    An insurance company says you can pay for your life insurance by paying $100 at the beginning of each year or $51.50 at the beginning of each half-year. They say the rate of interest underlying this calculation is j2=3%. What is the true value of j2? The
  64. Geometry

    Could anyone tell me if this question is correct? 2.) Which is true about both Pappus's Theorem and Desargues' Theorem? Each theorem applies to spherical geometry. Each conclusion states that three points are collinear. <---- Each hypothesis is based on
  65. biology

    Need help with FOV area (mm2) totally confused? im confused i have the FOV diameter they are: 4x = 5 10x = 2 40x = 0.5 a classmate told me she thinks the area for 40 x is: pi(5/2)^2 = 19.6 not sure if that's true or how to do it for the low and medium,
  66. Reading .

    What does the speaker mean in "Any Human to Another" when he says, "Sorrow never scorned to speak / To any who / Were false or true? Humans bring sorrow upon themselves. People who are truthful can avoid suffering in life. Sorrow comes to every human
  67. physics

    8. Electric field lines arising from two small charged particles P and Q. Consider the following two statements: i.The charge on P is smaller than the charge on Q. ii.The electrostatic force on P is smaller than that on Q. Which of the above statements are
  68. physics

    8. Electric field lines arising from two small charged particles P and Q. Consider the following two statements: i.The charge on P is smaller than the charge on Q. ii.The electrostatic force on P is smaller than that on Q. Which of the above statements are
  69. Pre-Calculus

    a jet, in calm air conditions, travel with velocity vector (389, 389). the wind velocity (in mph) at the plane's cruising altitude is given by (0, 50). how fast is the plane's true speed
  70. math

    prove, using the law of exponents, that the following is true (2^4)^3=(64)^2 (use the same bases to rewrite the expression) the second half of =(8)^2 (8)^2 =(4)^2 (2)^2 (4)^2 (2)^2 =(2)^2(2^2)(2^2)(2^2)(2^2)(2^2) now the first part (2^4)^3 2x2x2x2 2x2x2x2
  71. science

    1. Which of the following is TRUE regarding this situation: Solution A has a pH of 7.38, and Solution B has a pH of 7.42? a.Solution B is more acidic than Solution A b.The pH of Solution A falls within the homeostatic pH range for extracellular body
  72. english/revise long paper

    “Invisible Children,” a documentary filmed by three American college students, Jason Russell, Bobby Bailey, and Laren Pole, who set out for Africa in search for a story; however, they discovered the immense suffering of Acholi civilian population in
  73. Legal

    Under the legal definition of Fructus Industrials is it true that "Minerals in the Soil" would not fall under this? It would in fact, fall under Fructus Naturales?
  74. geometry

    Given p is false, q is true,and r is false, find the truth value of the statement. (~P <____> ~Q) ____> ~r Show step by step work.
  75. calculus

    The position function for a particular object is s = –23t^2 + 65. Which of the following statements is true? The initial position is 23 The initial velocity is 0 The velocity at time t = 1 is 42 None of these
  76. Biology

    Which of the following statements about enzymes is not true? A) Enzymes work best at a specified pH B) All enzymes have the same shape as their substrates. C) Enzymes are proteins. D) The shape of an enzyme allows it to do its job.
  77. algebra

    Is this a true statement? Polynomials and radical expressions differ because radical expressions contain rational numbers as exponents and polynomials do not.
  78. bio check

    in human (2n=46) mitosis result 2 cell with 23 chromoses and meosis result in (n=23) 4 cell with 46 chromoses... is this statment true ? please help me ....
  79. statistics

    two samples are considered independent if the sample selected from one population is not related to the sample selected from the second population. true or false
  80. MATH (PLZ HELP)

    JK bisects LM at point D which of the following is true about point D? Draw a picture to help you answer the question. A. D is the midpoint of JK B. D is both the midpoint of JK and the midpoint of LM C. D is the midpoint of LM D. None Of These Help Please
  81. calculus

    determine if the series is absolutely convergent and convergent. the sum from n=0 to infinity of ((-1)^n*e^n)/(n!) I used the ratio test and said that it was absolutely convergent and convergent. is this true?
  82. calculus

    determine if the series is absolutely convergent and convergent. the sum from n=0 to infinity of ((-1)^n*e^n)/(n!) I used the ratio test and said that it was absolutely convergent and convergent. is this true?
  83. Business

    True or false: If a manager has control over their subordinates they are using delegation? I think that is false because I would think that is a manager controls their subordinates they are using authority, am I correct?
  84. English movie

    Do you know about Steven Spielberg? Let me know something about him. (Schindler's list)-one of his works The true story of Austrian industrialist Oskar Schindler, who harbored Polish Jews during WWII by using them as workers in his factory. Schindler saved
  85. stat

    A researcher at a major clinic wishes to estimate the proportion of the adult population of the US that has sleep deprivation. How large a sample is needed in order to be a 95% confident that the sample proportion will not differ from the true proportion
  86. College Chem

    If equal masses of O2 and N2 are placed in identical containers at the same temperature, which of the following statements is (are) true? a. both flasks contain the same number of molefules b. the pressure in the N2 flask is greater than in the other
  87. marketing

    The total profit approach to evaluating possible product-market strategic plans: a. is the best approach to use. b. cannot be used to compare possible plans unless they are very similar. c. may support a plan that is not the most profitable in the short
  88. ADHD

    Which of the following is true of the cause and treatment of ADHD ? A. Drug therapy alone is not very effective in treating hyperactivity b. academic and social skills are best treated with a combination of medication and other treatment. C. Usually caused
  89. Health (Ms. Sue)

    Compare the stages of Maslow's hierarchy of needs. A: The first stage, the physical stage, which consists of food, water, sleep, and exercise, is ultimately essential for us to thrive and pass our genes on to the next generation. The second stage, the
  90. Chemistry

    1. According to the collision theory of chemical reactions: A. High energy collisions result in few successful reactions as there isn’t sufficient time for the products to react. B. High energy collisions lead to the successful formation of products. C.
  91. HR-Management

    Debbie, an administrative assistant, likes to stay at her desk until seven or so each workday evening, writing letters on her PC to her best friend. This is especially true when her boss also works late. What is this an example of? A) Impression management
  92. world history A

    The earliest societies of Mesopotamia believed their rulers had divine right (1). As these societies grew in size, more complex governments and bureaucracies emerged (2). As a result, ancient Mesopotamia became the birthplace of a secular society that
  93. Science

    This is not questions its the answers hope it helps took a long time to type. A basketball momentarily changes shape as it bounces off the floor. This is due too balanced forces acting on the ball TRUE* FALSE* A ball slowing down as it rolls across a
  94. Criminal justice/Corrections

    Which of the following statements is NOT true of the prison turmoil that existed between 1935 and 1960? A. The public embraced the idea rehabilitation and reform. B. There was a tremendous influx of criminals. C. Prison administrators did not know what to
  95. us history

    the battle of chancellorville defined the union effort in the civil war as being about slavery. true or false what happened to many former slaves after the civil war? -factory workers -united states military -moved to idaho or utah -sharecroppers and
  96. PS

    An advantage of using media resources for researching your topic is: A. you may listen to an expert in the subject area that you are interested in. B. media resources may set you in a direction of research you did not expect. C. watching a television or
  97. STAT

    A manufacturer of a new car claims the typical car will average 32 mpg of gasoline. An independent consumer group is skeptical of the claim and thinks the mean gas mileage is significantly different than the 32 claimed. A sample of 23 randomly selected
  98. Statistics

    Which of the following is(are) not true about sampling bias a. Sampling bias is inevitable when conducting a survey b. Quota sampling is still vulnerable to bias c. Biased samples may trigger some insights or suggest grounds for a new study but they are
  99. English

    "You should just go somewhere. You ruined our relationship, and I don't want to talk to you anymore," Bertha said to Mitchell as he begged her for forgiveness, "But, Bertha, you are the best girl in the world. You make my dreams come true." Bertha ignored
  100. Statistics

    Which of the following is(are) not true about sampling bias a. Sampling bias is inevitable when conducting a survey b. Quota sampling is still vulnerable to bias c. Biased samples may trigger some insights or suggest grounds for a new study but they are