Your DQ response count towards your participation requirements, if you make another substantive post on the same day. Statistical methods are used to collect and analyze information about the population within an experimental unit. The experimental unit is the article in which the statistics are being collected for. Within this experimental unit there is the population; the population is the set of units that the study intends to study. The population also has specific characteristics that are taken into consideration though out the study, and might include age, gender, employment statues, or education and are known as variables; variable meaning that the specific characteristics within the population may vary from unit to unit.
Was there a normal distribution? Defend your position by interpreting the normality tests. (0 marks as this question is part of data screening for the writing of the results in Task 10) The results show that the test is not significant as according to Smirnov and Shapiro-Wilk, the sig. =.200, .175, .183 and .122, which are greater than .05. Thus meaning that the assumption of normality was met According to skewness and kurtosis there is no problem with normality as both scores of -1.57 (skewness) and -0.39 (kurtosis) are both within the range of +/- 3.29.
Chapter 11 Comparisons Involving Proportions Learning Objectives 1. Be able to develop interval estimates and conduct hypothesis tests about the difference between the proportions of two populations. 2. Know the properties of the sampling distribution of the difference between two proportions[pic]. 3.
TOP: Find probabilities for binomial experiments. KEY: Probability | Binomial Experiments 31. ANS: D Identify the parameters of binomial distribution and calculate the probability of the given event using binomial expansion. |Feedback| A|This is the probability of clearing less than three hurdles.| B|The probability of clearing at least three hurdles, and not exactly three hurdles, is
The alternative hypothesis is a statement that is accepted only if the data proves evidence is true. This typically represents the values of a population parameter in which the researcher wants to gather evidence to support the hypothesis (McClave, Benson, & Sincich, 2011). The next steps are to select the appropriate test statistic and level of significance. The z-test is typically used when testing a hypothesis of a proportion and a t-test is used when testing a hypothesis of a mean. The test statistic is used to determine whether the researcher should use the null or alternative hypothesis.
There are control and experimental groups. State the difference in effect (or cause) between the control and experimental groups. 4. State the conclusion that you think is warranted by the report. Discuss how size, diversity, facts you know about the make-up of each group, and statistical significance of d factored into reaching your opinion of what conclusion is
There are control and experimental groups. State the difference in effect (or cause) between the control and experimental groups. 4. State the conclusion that you think is warranted by the report. Discuss how size, diversity, facts you know about the make-up of each group, and statistical significance of d factored into reaching your opinion of what conclusion is
Lin Article Critique: Part 2 xxxxxxxxxxxx Liberty University COUN 503 September xx, 20xx Lin Article Critique: Part 2 In order to critique an article on appropriate population and sampling techniques, experimental procedures, and evaluation measures a critic must understand what constitutes an experiment. A study may be classified as an experiment when variables are manipulated to determine the existence of cause-and-effect relationships (Jackson, 2012). Independent variables are manipulated and dependent variables are measured (Jackson, 2012). The independent variables identified in the article written by Lin, Mack, Enright, Krahn, & Baskin (2004), “Effects of Forgiveness Therapy on Anger, Mood, and Vulnerability
Rich agree there is a gender gap when it comes to females applying to colleges and universities. Saying Kenyon until 1969 was a man college. That year more than 55 percent of her applicants are female. Today, two-thirds of post-secondary institutions report they get more female applicants than males. Nationwide 56 percent of women are undergraduates.
Provide an example of each. What is a research population? What is a research sample? Provide an example of each. What is a random sample?