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Statistics

Statistics
1) Determine whether the evaluated group is a population or a sample
a) Based on a randomly selected group of 500 patients with high cholesterol, it was found that 67% have heart disease. Is this a population or a sample; explain your answer.
b) An investigation of 150 randomly selected local restaurants concluded that 42% of local restaurants have serious health code violations. Is this a population or a sample; explain your answer.
2) Determine whether the given value is a statistic or a parameter.
a) A researcher determines that 42.7% of all downtown office buildings have ventilation problems. Is this a statistic or a parameter; explain your answer.
b) After taking the first exam, 15 of the students dropped the class. Is this a statistic or a parameter; explain your answer.
3) Identify the type of sampling used.
a) A tax auditor selects every 1000th income tax return that is received. What type of sample is this and why?
b) The name of each contestant is written on a separate card, and the cards are placed in a bag with three names being picked from the bag. What type of sample is this and why?
4) Is the study experimental or observation and why?
a) A political pollster reports that his candidate has a 10% lead in the polls with 10% undecided.
5) Select the study that is most appropriate and EXPLAIN WHY it is most appropriate for the study.
a) Is the aspirin produced by a particular pharmaceutical company better than that of a competitor at relieving headaches? Which of the following would best be used to study this: 1) a case-controlled observation; 2) an observation; 3) a double-blind experimental procedure; and 4) and experimental procedure.

6) Identify the following variables as either qualitative or quantitative and EXPLAIN your answers.
a. The number of people on a jury.
b. The color of your house
7) Identify the number as either continuous or discrete and EXPLAIN your answers.
b) The average height of all freshmen entering college in a certain year is 68.4 inches.
c) The number of limbs on a 2-year-old oak tree is 21.
8) Determine which of the four levels of measurement is most appropriate and explain your answer.
a. Temperatures in degrees Fahrenheit of the ocean at various depths.
b. The rank of individuals in the military
c. The number of people with blue, brown and red hair in a classroom
9) Determine the following (show your work):
a. The speed of a new microprocessor is 800MHZ, but a new test of its speed gives a measurement of 820MHZ. What is the absolute error? What is the relative error?
b. Convert 1/16 to a percent
c. Convert 0.45 to a percent
d. Humanities majors spend an average of $115 per course on books. Mathematics majors spend an average of $70 per course on books.
What is the percent difference between the two amounts relative to the amount for mathematics majors (round to the nearest percent)?
e. Suppose that the cost of a statistics text was $50 in 1985 and is $100 in 2000. What is the “Statistics Text Index” number, rounded to the nearest tenth, for the 2000 edition with the 1985 price as the reference value?

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Statistics

Find (1) the Means Median Mode then(2) the Standard deviation
Perception of time. Actual times (in seconds) recorded when statistics students participated in an experiment to test their ability to determine when one minute (60 seconds) had passed.

53 52 75 62 68 58 49 49

Submit both a Word document and two Excel document as needed to show calculations and interpret the results

Our Service Charter

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    We employ a number of measures to ensure top quality essays. The papers go through a system of quality control prior to delivery. We run plagiarism checks on each paper to ensure that they will be 100% plagiarism-free. So, only clean copies hit customers’ emails. We also never resell the papers completed by our writers. So, once it is checked using a plagiarism checker, the paper will be unique. Speaking of the academic writing standards, we will stick to the assignment brief given by the customer and assign the perfect writer. By saying “the perfect writer” we mean the one having an academic degree in the customer’s study field and positive feedback from other customers.
  2. Free Revisions

    We keep the quality bar of all papers high. But in case you need some extra brilliance to the paper, here’s what to do. First of all, you can choose a top writer. It means that we will assign an expert with a degree in your subject. And secondly, you can rely on our editing services. Our editors will revise your papers, checking whether or not they comply with high standards of academic writing. In addition, editing entails adjusting content if it’s off the topic, adding more sources, refining the language style, and making sure the referencing style is followed.
  3. Confidentiality / 100% No Disclosure

    We make sure that clients’ personal data remains confidential and is not exploited for any purposes beyond those related to our services. We only ask you to provide us with the information that is required to produce the paper according to your writing needs. Please note that the payment info is protected as well. Feel free to refer to the support team for more information about our payment methods. The fact that you used our service is kept secret due to the advanced security standards. So, you can be sure that no one will find out that you got a paper from our writing service.
  4. Money Back Guarantee

    If the writer doesn’t address all the questions on your assignment brief or the delivered paper appears to be off the topic, you can ask for a refund. Or, if it is applicable, you can opt in for free revision within 14-30 days, depending on your paper’s length. The revision or refund request should be sent within 14 days after delivery. The customer gets 100% money-back in case they haven't downloaded the paper. All approved refunds will be returned to the customer’s credit card or Bonus Balance in a form of store credit. Take a note that we will send an extra compensation if the customers goes with a store credit.
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