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Use critical thinking to address the  key issue. 11. A researcher published this survey result: 74% of people would  be willing to spend 10 percent more for energy from a non-polluting source". The survey question was announced on a national  radio show and 1,200 listeners responded by calling in. What is.
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Provide an appropriate response 1)Dave is a college student contemplating a possible career option. One factor that will influence his decision is the amount of money he is likely to make. he decides to look up the average salary of graduates in that professions .Which information should be more useful to.
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Provide an appropriate response 1)The table below provide a frequency distribution for a winner of the devis cup during the period  1977-1994. Which measure of center the mean, or the median or the mode is most approbriate here? Why? Find the mean for the given sample data. 2) The student in Hugh logan's math.
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16 A quality uses a computer to generate 500 random numbers, then interviews the voters corresponding to those numbers. A) convenience. B) Random C) systematic D)Cluster E) stratified. Provide an appropriate response. 18. An education expert is researching teaching methods and wishes to interview  teachers from a particular school district. She randomly selects ten schools from the.
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32)graph below is a normal probability plot for the residuals  for a set of regression data. Does the graph suggest violation of one or more of the assumptions for regression inferences? Explain your answer.32) 33) A researcher is interested in the relationship between age and income. He performs a regression analysis using.
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Determine whether the given value is from a discrete or continuous data set. 6. The temperature of a cup of coffee is 67.3 ?F A) Discrete B) Continuous. Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. 7. Survey responses of " good, better, best" A) Ratio. B) Nominal C) Interval D) Ordinal. 8..
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Use the pie chart to solve the problem. 16) The pie chart shows the percent of the total population of 78,100 of Springfield living in the given types of housing. Round your result to the nearest whole number.                                      39%                                              32%                        4%                                            6%                       19% Find the.
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Provide an appropriate response. 1) A medical research team studied the ages of 34 patients who had strokes caused by stress. The frequency distribution below summarizes the results. When trying to understand the stroke data, what would be the advantage of looking at a histogram instead of this frequency.
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65) At the 0.01 significance level, do the data provide sufficient evidence to conclude that a difference exists between the population means of the three different brands ? The sample data are given below. 66) At the 0.025 significance level, do the data provide sufficient evidence to conclude that a difference exists between the.
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Provide an appropriate response. 1.  A teacher was interested in knowing how much tax people pay in the united states.  She selected a simple  random sample of her friends and asked them about their taxes. Is this sample likely to be  representative of all adults in the united states? Use common sense.
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Provide an appropriate response. 1) Suppose you are comparing frequency data for two different groups, 25 managers and 150 blue collar workers. Why would a relative frequency distribution be better than a frequency distribution? 2) The following histogram shows average SO2 (sulfur dioxide) boiler emission rates from selected utility companies. The.
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109) Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0. The following data consist of the students' GPAs (x) on entering the program and their current GPAs (y). The sample linear correlation coefficient is r =.
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Estimate the standard deviation 11)The maximum value of a distribution is 47.5 and the minimum value is 4.0. A)7.9 B)18.9 C)10.9 D)15.9 Use the empirical rule to solve the problem. 12)At one college, GPA's are normally distributed with a mean of 2.6 and a standard deviation of 0.4. What percentage of students at the.
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Provide an appropriate response. 1. A student surveyed a simple random sample of students of her college, Is this sample likely to be representative of all students of her college? Of all adults in the United States? Explain. Use common sense to determine whether the given event is impossible, but very unlikely;.
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71) True or false:When performing a one-way ANOVA, the error sum of squares can be obtained by subtracting the treatment sum of squares from the total sum of squares. A) True B) False 72) True or false: A one-way ANOVA test can be right-tailed, left-tailed, or two-tailed depending on the alternative hypothesis. A) True B).
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16) The pie chart below gives the number of students in the residence halls at the state university.                                          330                                       250                                                  570                        210                                     410                                                                                       290 Write the ratio of the number of residents at Dodge to the number of students at Adams. Provide an appropriate response. 17) The graph.
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24) A social scientist is interested in the relationship between years of education and income in  zadults in the U.S. A random sample of nine working adults yields the following data, where x denotes  years of education completed and y denotes annual income in thousands of dollars. Provide an appropriate response. 25).
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16. A T.V show's executives commissioned a study to gauge the impact of the show's ratings on the sales of its  advertises. A) Observational study B) Experiment 17. A market researcher selects 500 drivers under 30 years of age ande 500 drivers over 30 years of age. A) systematic B)Random C) Stratified. D) convenience E. Cluster. 18. A polling.
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60) Four different types of fertilizers are used on raspberry plants. The number of raspberries on each randomly selected plant is given below. Test the claim that the type of fertilizer makes no difference in the mean number of raspberries per plant. Use α = 0.01. 61) A realtor wishes to compare the.
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Determine the standard error of the estimate. 1) 2.4495B) 0.250C) 1.1547D) 2.00 2) A)1.29B) 0C) 2.06D) 0.17 3) A).2.2361B) 4.1892C) 6.2750D) 5.00 4) A).0.7280B) 0.5130C) 0.6483D) 0.4189 5) A) 3.1270B) 1.6419C) 0.8275D) 2.6959 6) The paired data below consists of test scores and hours of preparation for 5 randomly selected students. Here, x denotes hours of preparation, and y denotes test.
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Use critical thinking to address the key issue. 11. A researcher wished  to  gauge public opinion on gun control.  He randomly selected 1000 people from among registered voters and asked them the following question: " Do you believe that gun control laws which restrict the ability of Americans to protect their.
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16. A doctor performs several diagnostic tests to determine the reason for a patient's illness. A) Experiment B) Observational study Identify which of these types of sampling is used:  Random, stratified, systematic, cluster, convenience. 17. An education researcher randomly selects 48 middle schools and interviews all the teachers at each school. A) Random B) cluster C) convenience D).
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12) Applicants for a particular job, which involves extensive travel in Spanish speaking12) countries,  must take a proficiency test in Spanish. The sample data below were obtained in a study of the relationship between the numbers of years applicants have studied Spanish (x) and their score on the test (y). 13).
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Use the pie chart to solve the problem. 16) A survey of the 9854 vehicles on the campus of State University yielded the following pie chart.                                                    9%                                        16%                                                         36%                                   7%                                          3%                                                                           29% Find the number of hatchbacks. Round your result to the nearest whole number. A) 3055                            B).
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11) A) 26, 21, 28, 31, 41, 46                                          B) 26, 28, 31, 31, 46, 46 C) 26, 28, 31, 38, 46, 46                                          D) 21, 26, 21, 38, 48, 46 Construct the dotplot for the given data. 12) A store manager counts the number of customers who make a.
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44)sample data below are the typing speeds (in words per minute) and reading speeds (in words per minute) of nine randomly selected secretaries.  Here, x denotes typing speed, and y denotes reading speed. The standard error of the estimate is approximately 100.33479.  At the 10% level of significance, do the data.
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6) The frequency distribution for the weekly incomes of students with part-time jobs is given below. Construct the corresponding relative frequency distribution. Round relative frequencies to the nearest hundredth of a percent if necessary. Use the given data to construct a frequency distribution. 7) On a math test, the scores of 24 students.
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Decide, at the given significance level, whether the data provide sufficient evidence to conclude that x is useful for predicting y. 39) Decide, at the 10% significance level, whether the data provide sufficient evidence to conclude that x is a useful predictor of y. 40) Decide, at the 10% significance level, whether.
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Determine  whether the given value is a statistic or a parameter. 5. A health and fitness club surveys 40 randomly selected members and found that the average  weight of those questioned is 157 Ib. A) statistic B) Parameter. Determine whether the given value is from a discrete or continuous data set. 6. The height.
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