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Suppose you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information that...
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Corn plants grow to a mean height of 6.44 feet with a standard deviation of 0.33 feet. A new genetically modified corn plant is being developed.
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You are doing a study examining the effects of studying method on academic achievement. All the students in your study take a course on genetics that...
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A random sample of 174 college students was asked to indicate the number of hours per week that they surf the internet for either personal
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How can you avoid errors when calculating for variance and standard deviation of discrete distribution?
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a study 200 nurses found that of 125 females nurses, 56 had bachelor's degree; and of 75 male nurses; 34 had bachelor degrees.
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In a random sample of 45 refrigerators, the mean repair cost was $ 1 4 0 . 0 0 and the population standard deviation is $15. Construct a 90%...
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Which one is not included in the category of longitudinal research design?
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In a clinical trial of a vaccine, 10,000 children were randomly divided into two groups.
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Construct a confidence interval for p1 p2 at the given level of confidence.
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Question A firm has a large number of accounts; 40% of its accounts receivable are wholesale and 60% are retail.
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Suppose amongst all the families on a Caribbean Cruise, the population variance of the number of children per family is 4. If we were to take a...
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After giving a short definition, compare and contrast the two concepts below:
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1) Draw plots of (a) A typical reliability curve and, (B) A hazard rate curve 2) What is the difference between hazard rate and failure rate?
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The MBA department is concerned that dual degree students may be receiving lower grades than the regular MBA students.
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Problem Set 3 Hypothesis Testing 1. The MBA department is concerned that dual degree students may be receiving lower grades than the regular MBA...
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Blood pressure is measured in millimeters of mercury (mm Hg) and recorded with the systolic number first, followed by the diastolic number.
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In a survey of 635 males ages 18-64,399 say they have gone to the dentist in the past year.Construct 90% and 95% confidence intervals for the...
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Flash Jolt, a manufacturer of camera equipment, annually introduces new models in the fall of the year.
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I need to put the following data into a 3X2 contigancy table and preform a chi-squared test and I want to be sure I'm doing it right!
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reject Ho. conclude that thr mean of the 3 populations are equal b. reject Ho. conclude that the means of the 3 populations are not equal c.
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A trucking company claims that when it ships eggs, 93% of the eggs will arrive unbroken. You check 350 of the eggs that the trucking company shipped...
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Which is not a quality criterion in Lincoln and Guba's framework?
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Project 3 instructionsBased on Larson & Farber: sections 5.2–5.3 Note that you must do this project on your own—you may not work with other students. You are always welcome to ask your instructor
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Your statistics teacher, knowing the power of sampling, decides to use only 3 of your 5 quiz grades in assigning your grade for the course, chosen at...
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Project 3 instructionsBased on Larson & Farber: sections 5.2–5.3 Note that you must do this project on your own—you may not work with other students. You are always welcome to ask your instructor
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Find the maturity value FV of the given loan amount. (Round your answer to the nearest cent). $1,200 borrowed at 7 1/8% for six years. Find the...
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The following approach is used to model the spread of an infectious disease. At the beginning of period 1 there are 5 infected people and 95...
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Health officials would like to determine the mean height of 6 year old children to within plus or minus 0. Results from a previous study found there...
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A local tennis probshop strings tennis rackets at the tension (pounds per square inch) requested by the customer.
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MATH 115 QUIZ 5 solve the equation sin(x) tan(x)+ 3 sin(x)=0 finding all solutions in the interval [0, 360).
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the problem begins on line 1 and ends on line 59. Answers can be in red.
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re a relationship between the amount of dust carried over large areas of the Atlantic and the Caribbean and the amount of rainfall in African regions?...
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For each of the following, identify the independent variable(s), the dependent variable(s), and the level of measurement (nominal, ordinal, scale) a....
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A sample of 10 adult men gave the following data on their heights and weights.
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A study is set up to determine the average remuneration earned by members of city council in large cities. It is desired that the error from the mean...
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A study is set up to determine the proportion of cities with private refuse collection.
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We wish to estimate the proportion of travellers who believe that air travel is safe.
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standardized performance test for athletes, how many random test results must be obtained in order to find the population mean score within 5 points?...
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Critical regions get larger as values get smaller. T or F, and why or why not? and What decision is reached when is greater than the p-value? Why is
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(1) Suppose that you give a sample of 1077 students a test of quantitative (math) skills. You find that the mean = 275.
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Find the probability that exactly 3 boys will be selected.
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Consider the following hypotheses H0:plt; equal 0.15 H1:p gt; 0.15 Given that overbar p=0.2 n=120 and a=0. Determine the critical value(s) of test...
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. An investigator wants to estimate caffeine consumption in high school students. How many students would be required to estimate the proportion of
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Post an example of an instance where a dependent variable is affected by two or more independent variables.
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With a height of 65 in George was the shortest president of a particular club in the past century. The club presidents of the past century have a...
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Away Home Runs Margin Hits Errors Pitchers Walks Time TEX CHW 10 10 20 2 5 5 184 CLE DET 15 1 24 0 11 10 225 BOS KCR 7 5 13 1 8 7 213 BAL LAA 8 6 20
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I'm not sure how to work this problem out : Two hundred people apply for four jobs. Sixty applicants are women. What is the probability that at least...
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1. Define the term linear regression. 2. How to perform linear regression in SPSS? 3. What is the equivalent to R 2 in simple linear regression?
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A sportswear manufacturer would like to conduct a matched pairs experiment to compare two new models of running shoes to determine which is better
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