QNT 561 GENIUS Education exportqnt561geniusdotcom

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QNT 561 GENIUS Education Expert/qnt561geniusdotco
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QNT 561 Final Exam Guide (New)

• 1.      The mean gas mileage for a hybrid car is
  56 miles per gallon. Suppose that the gasoline
  mileage is approximately normally distributed
  with a standard deviation of 3.2 miles per
  gallon.
• 2.      What conditions must n satisfy to make
  the x2 test valid?
• 3.      To use the t-statistic to test for a
  difference between the means of two populations,
  what assumptions must be made about the two
  populations? About the two samples?
• 4.      Studies of managers from two countries in
  the 1970s found sharp differences of opinion
  towarded.

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QNT 561 Final Guide (Latest)

• 1. A random sample of size 15 is selected from a
  normal population. The population standard
  deviation is unknown. Assume the null hypothesis
  indicates a two-tailed test and the researcher
  decided to use the 0.10 significance level. For
  what values of t will the null hypothesis not be
  rejected?
•  
• 2. Which of the following is a characteristic of
  the F distribution?
•  
• 3. For a chi-square test involving a contingency
  table, suppose the null hypothesis is rejected.
  We conclude that the two variables are __________.

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QNT 561 Week 1 Lab Work (New)

• Ex 4) Two Thousand three hundred frequent
  business travelers are asked which Midwestern
  city they prefer Indianapolis, Saint Louis,
  Chicago or Milwaukee. 388 liked Indianapolis
  best, 450 liked Saint Louis, 1212 liked Chicago
  and the remainder prefers Milwaukee. Develop a
  frequency table and a relative frequency table to
  summarize this information (Round relative
  frequency to 3 decimal places.)

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QNT 561 Week 2 Lab Work (New)

• Chapter 5 Ex 4) A large company must hire a new
  president. The Board of Directors prepares a list
  of five candidates, all of whom are equally
  qualified. Two of these candidates are members of
  a minority group. To avoid bias in the selection
  of the candidate, the company decides to select
  the president by lottery. a. What is the
  probability one of the minority candidate is
  hired? b. Which concept of probability did you
  use to make this estimate? Ex 14) The chair of
  the board of directors says, There is a 50
  chance this company will earn a profit,

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QNT 561 Week 3 Lab Work (New)

• Chapter 8
•  
• Ex 2) The following is a list of 29 hospitals in
  the Cincinnati (Ohio) and Northern Kentucky
  region. The hospitals are identified by numbering
  them 00 through 28. Also included is whether the
  hospital is a general medical/surgical hospital
  (M/S) or a specialty hospital (S). we are
  interested in estimating the average number of
  full- and part-time nurses employed in the area
  hospitals.

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QNT 561 Week 4 Lab Work (New)

• Chapter 10 Ex 2) A Sample of 36 observations is
  selected from a normal population. The sample
  mean is 12, and the population standard deviation
  is 3. Conduct the following test of hypothesis
  using the 0.01 significance level. EX. 10) Given
  the following hypotheses H0 µ 400 H1 µ ?
  400 A random sample of 12 observations is
  selected from a normal population. The sample
  mean was 407 and the sample S.D 6. Using the 0.1
  significance level a. State the decision rule.
  b. Compute the value of the test statistic c.
  What is your decision regarding the null
  hypothesis? EX 12)

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QNT 561 Week 5 Lab Work (New)

• Chapter 13 Ex 6) The owner of Maumee
  Ford-Mercury-Volvo wants to study the
  relationship between the age of a car and its
  selling price. Listed below is a random sample of
  12 used cars sold at the dealership during the
  last year. a. If we wants to estimate selling
  price on the basis of the age of car, which
  variable is thr dependent varialble and which is
  the independent variable? b. 1. Determine the
  correlation coefficient 2. Determine the
  coefficient of determination. c. Interpret the
  correlation

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QNT 561 Week 6 Lab Work (New)

• Chapter 18 EX.2) Listed Below is the number of
  movie tickets sold at the Library Cinema-Complex,
  in thousands, for the period from 2001 to 2013.
  Compute a five-year weighted moving average using
  weights of 0.15, 0.15, 0.25, 0.16, and 0.29,
  respectively. Describe the trend in yield. EX 10)
  Appliance Center sells a variety of electronic
  equipment and home appliance. For the last 4
  years, 2010 through 2013, the following quarterly
  sales (in millions) were reported. Determine
  the typical seasonal index for each of four
  quarters.

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