Week 8 quiz – FINAL ALL ANSWERS 100% CORRECT SPRING FALL-2022 LATEST SOLUTION GUARANTEED GRADE A+

Question 1 of 20 2.0 Points How are inferential statistics different from descriptive statistics? A.Descriptive statistics allow drawing inferences from the sample to a target population. B.Descriptive statistics verify the accuracy of the inferential statistics. C.Inferential statistics describe the results of a study. Correct D.Inferential statistics allow drawing inferences from the sample to a target population. Answer Key: D Question 2 of 20 2.0 Points are characteristics of samples, while are characteristics of populations. A.Concepts; statistics B.Parameteres; statistics Correct C.Statistics; parameters D.Parameters; estimations Answer Key: C Question 3 of 20 2.0 Points In a normal distribution, what percentage of scores falls between one standard deviation below the mean and one standard deviation above the mean? A. 6% B. 0% Correct C.68% D.90% Answer Key: C Question 4 of 20 2.0 Points Here is a set of scores: 5, 3, 7, 3, 6, 2, 5, 3. The median of this set of scores is . A.2 B.3 Correct C.4 D.4.5 Answer Key: C Question 5 of 20 2.0 Points Here is a set of scores: 5, 3, 7, 3, 6, 2, 5, 3. Those mode of this set of scores is . A.3 B.4 Incorrect C.4.22 D.4.5 Answer Key: A Question 6 of 20 2.0 Points An exam was given to two sections of the same course. In Section 1, the exam mean was 51 and the standard deviation was 7. In Section 2, the exam mean was 51 and the standard deviation was 13. Which of the following conclusions is accurate? A. Section 1 did better on the exam than Section 2. B. Section 1 scores were more variable than Section 2. Correct C.Section 1 scores were less variable than Section 2. D.Section 1 did less well on the exam than Section 2. Answer Key: C Question 7 of 20 2.0 Points The z score, or standard score, allows the researcher to determine: Correct A.how far a target individual's score is from the group mean. B. what percentage of individuals in the sample scored above the target individual. C. the mean for the population based on the mean for the sample. D. what percentage of individuals in the sample scored below the target individual Answer Key: A Question 8 of 20 2.0 Points Danzell is a purchasing agent for a major grocery store chain. He has noticed over the years that the higher the outdoor temperature, the more likely people are to buy fresh fruit. Based on Danzell's observations, we would say there is relationship between outdoor temperature and buying of fresh fruit. Correct A.a positive B.a negative C.a causal D.no Answer Key: A Question 9 of 20 2.0 Points Frank Fitness found a correlation coefficient of -.74 between hours of strenuous exercise each week and a standard measure of body mass. He interprets this to mean that there is a and relationship between hours of strenuous exercise and body mass. A.strong; positive Correct B.strong; negative C.weak; positive D.weak; negative Answer Key: B Question 10 of 20 2.0 Points Statistical hypothesis testing involves the: A.research hypothesis. B.probability level. C.significance level. Correct D.null hypothesis. Answer Key: D Question 11 of 20 2.0 Points A placebo is given to the : A.experimental group B.treatment group Correct C.control group D.both groups Answer Key: C Question 12 of 20 2.0 Points We are intersted in the relationship between music and mood. We have a group of participants, we measure their mood, then, we have them listen to 20 minutes of sad country music, then, we measure their mood again. We have just conducted a (n) : Incorrect A.static group comparison B.pretest-posttest control group design C.one-group pretest -postttest design D.within subjects design Answer Key: C Question 13 of 20 2.0 Points Dr. Research is concerned that pretests may have an influence on posttest scores. To control this problem she conducts a (n) : A.alternating treatment design Incorrect B.quasi-experimental design C.ex post facto design D.Solomon four group design Answer Key: D Question 14 of 20 2.0 Points What is the key differnece between a posttest only control group design and a static group comparison? A.a posttest Incorrect B.a pretest C.sample size D.random assignment Answer Key: D Question 15 of 20 2.0 Points This kind of design is often confused with correlational and experimental designs because it involves looking at existing circumstances AND it has clear independent and dependent variables: Incorrect A.nonrandomized two factor design B.multiple baseline design C.quasi experimental design D.ex post facto design Answer Key: D Question 16 of 20 2.0 Points We are interested in violent video games and aggression in 10 year-old boys. We find dozens of experiments in the liturature about this topic and combine them all to determine whether they yeild consistant results. This procedure is called a(n) : A.multiple baseline design B.liturature review Correct C.meta analysis D.liturature analysis Answer Key: C Question 17 of 20 2.0 Points Measures of central tendency, the amount of variability within the data, and the extent that variables are related to each other are all elements in : Incorrect A.inferental statistics B.parametric statistics C.discrete statistics D.descriptive statistics Answer Key: D Question 18 of 20 2.0 Points When two variables move down in value in relation to each other we call this a : Incorrect A.negative correlation B.positive correlation C.partial correlation D.biserial correlation Answer Key: B Question 19 of 20 2.0 Points Failing to reject the null hypothes and concluding that a result is due to chance when it is not is called a : A.type I error Incorrect B.statistic error C.error variance D.type II error Answer Key: D Question 20 of 20 2.0 Points Which of the following correlation coefficients is stronger? A.-.7 Incorrect B.-.3 C.+.6 D.+.2 Answer Key: A FINAL Part 1 of 1 - 150.0 Points Question 1 of 75 2.0 Points The reference list is included in the . A.front matter Correct B.end matter C.appendices D.body of the report Answer Key: B Question 2 of 75 2.0 Points The abstract is included in the . Correct A.front matter B.end matter C.appendices D.body of the report Answer Key: A Question 3 of 75 2.0 Points The acknowledgments are included in the . Correct A.front matter B.end matter C.appendices D.body of the report Answer Key: A Question 4 of 75 2.0 Points The measure(s) of central tendency that is/are appropriate for use with nominal data is/are A.the median only Correct B.the mode only C.the median and the mean D.the median and the mode Answer Key: B Question 5 of 75 2.0 Points When summarizing ordinal data, the is the most useful measure of central tendency. A. arithmetic mean B. mode Correct C.median D.geometric mean Answer Key: C Question 6 of 75 2.0 Points When reporting growth data, the is the most useful measure of central tendency. A.arithmetic mean B.mode C.median Correct D.geometric mean Answer Key: D Question 7 of 75 2.0 Points The percentile rank allows the researcher to determine .