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What category of forecasting techniques uses managerial judgment in lieu of numerical data?
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A bag of colored candies contains 100 pieces of candy in different colors. The distribution of the colors is listed below. Brown: 30 Red: 18 Yellow: 15 Green: 11 Orange: 10 Blue: 16 If a piece of candy is selected at random, find the probability of not se
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Give an example of a research study that uses quantitative analysis. Explain what this statistical method allowed the researchers to accomplish and conclude in the study.
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Simplify to a single term in scientific notation (2 * 10 )^3 * (6 * 10^4) – 12 * 10^7 – 48 * 10^7 – 4.8 * 10^8
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Diamond prices (standardized by weight) for diamonds with weights 0.99 carats and 1 carat. Construct a 95% confidence interval for the average difference between the standardized prices of 0.99 and 1
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The ages (in years) of survey respondents are quantitative data. True or false?
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Last year a large trucking company delivered 9.5 x 10^5 tons of goods with an average value of $20,000 per ton. What was the total value of the goods delivered? Write the answer in scientific notation.
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How do you rewrite 10,000,000 as a power of ten?
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The table below gives the number of hours a sample of 24 children spent watching TV last week. Find the range and standard deviation. (For the standard deviation, round your answer to 4 decimal places.)
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Imagine a program designed to provide meals-on-wheels to eligible elderly shut-ins. Explain the purpose/use of Inferential statistics in such a needs assessment.
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A researcher studies the average distance that 130 people living in U.S. urban areas walk each week. A. What is the size of the sample? B. Identify the population. C. Is this “average” a descriptive statistic or an inferential statistic if it is used to d
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In probability sampling, all elements of a population have a known and nonzero chance of being included in the sample. A. True B. False
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Describe the three steps in qualitative data analysis (data reduction, data display, and the drawing of conclusions).
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The basic data analysis strategy for all qualitative research designs including phenomenology, grounded theory, ethnography, narrative analysis, case study, and generic approach is: a) Holistic and reflective. b) Deductive and probabilistic. c) Summative
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A Pew Internet poll asked cell phone owners about how they used their cell phones. One question asked whether or not during the past 30 days they had used their phone while in a purchase they were con
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Express the answer to the following calculation in scientific notation. 850,000 – (9.0 x 105) =
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What is the science of collecting, organizing, and interpreting data?
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What are the basic orientations of qualitative research?
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The sampling distribution of a mean will be \approx imately normal even when the population is not exactly normal as long as the sample is (a) representative. (b) large. (c) small.
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Any measurement based on sample data is called a: a. sample parameter b. population statistic c. population parameter d. sample statistic
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In selecting research participants, the results can be generalized if the sample represents the a. ideas of the researcher. b. target population. c. common sense views of the times. d. theory in question.
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Identify whether the variable in the information below is qualitative or quantitative. You survey your friends in the statistics class asking them how they did on their first exam. (a) qualitative (b) quantitative (c) neither qualitative or quantitative (
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Explain why it is inadvisable to use a large distilling flask to distill a very small volume of solution.
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Why is it important to define the population as specifically as possible in research?
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A) What is the primary objective in the audit of accounts payable? B) How might this affect the sampling method used and how the sample is evaluated?
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Within qualitative research, the primary instrument for data collection is typically: a. a survey b. a model c. a tape recorder d. the researcher
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If a researcher gives a personality test to several individuals and compares their resulting personality profiles with actual observations of the individuals’ behavior, she is undoubtedly testing the [{Blank}] of the personality tests. a. reliability b.
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What are appropriate ways to collect data while maintaining professionalism and integrity? Support your response.
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How do you write 5.4 times 10 ^ 4 in standard notation?
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The most important activity in the design of experiments is: a. Analyzing the experimental data b. Analysis of variance c. Conducting the experiment d. Planning for the experiment
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What is qualitative and quantitative chemical analysis?
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What is “unit of analysis” in the research process? How is it different from “characteristics of interest”?
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What is the importance of qualitative research in psychology? |
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American roulette is a casino game in which a wheel is spun, and bets are placed on which number/color combination appears. There are 38 numbers, 18 of which are colored red, 18 are colored black, and 2 are colored green. One bettor notice that, in 30 spi
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Why was gravity filtration used instead of evaporation to isolate the calcium carbonate
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Ninhydrin is a chemical that reacts with amino acids in proteins to produce a purple color. The ninhydrin test was performed on three substances: distilled water, apple cider, and egg whites (which contain albumin protein.) Identify each of these substanc
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Students in a research class wanted to measure the construct of student engagement, so they designed a questionnaire that asked about all the ways they thought students could be involved in the school. They passed it around the class and everyone gave sug
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You have been commissioned to help design a study to investigate factors affecting used car prices in Australia. The study is being conducted by a motorists’ lobby group that is based in Brisbane. You
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How might the major data collection issues of today compare to the issues that occurred in the pre-internet era?
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There are 83,436 Penn State undergraduate students. The academic advisor wants to estimate the proportion of all Penn State undergraduate students who work full-time. It would take him too much time to contact all 83,436 students, so, he uses Minitab Expr
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