Pls answer these questions
17 Causal research
designs are experimental. TRUE FALSE
18 Pure research is also referred to as basic research. TRUE
FALSE
19 Results from a qualitative research study can be generalized to
a population. TRUE FALSE
20 Hypothesis tesing is used to prove facts. TRUE FALSE
21 An independent variable is also known as a predictor variable.
TRUE FALSE
22 A dependent variable is also known as an outcome variable. TRUE
FALSE
An alternative
hypothesis is a statement where no statistically significant
relationship or statistically significant difference occurs between
variables or groups. TRUE FALSE
24 It is possible to reject both the null and alternative
hypotheses. TRUE/ FALSE
25
An alpha of .025 is the normally accepted cut-off for rejecting the
null hypothesis and accepting the alternative hypothesis. TRUE/
FALSE
26
Correlation indicates that one variable causes an effect seen in
another variable. TRUE /FALSE
27
After the statistical procedure has been completed, the calculated
statistic’s p value is then compared to the alpha. If the p value
is greater than the alpha, the null hypothesis is rejected, and the
alternative hypothesis is accepted. TRUE// FALSE
28
Statistical tests are used to determine if the null hypothesis
should be accepted or rejected based upon whether the test results
are statistically significant or not. TRUE /FALSE
29 Exploratory research designs are experimental. TRUE/ FALSE
30
Statistically significant ANOVA results inform the researcher about
where differences exist between means. TRUE/
FALSE
17. True
18. True
19. True
20. False
21. False
22. True
23. True
24. False
25. True
26. True.
27. False
28. True
29. True
30. False
Pls answer these questions 17 Causal research designs are experimental. TRUE FALSE 18 Pure research is...
Answer the following questions: 1) Which of the following research designs poses a threat to internal validity called selection? a) one-shot case study b) one-group pretest-post test c) static-group comparison d) one-group 2) This type of research is considered a descriptive methodology in which results of interviews, observations, or questionnaires reveal what is happening at a particular occurrence. It involves recording, describing, analyzing, and interpreting conditions that presently exist. Comparisons and contrasts are attempted to reveal relationships between the non-manipulated...
Mark each of the following as true or false and justify your response. 1. If you fail to reject the null hypothesis, then the research hypothesis is false. 2. Independent variables may be linearly related. 3. A slope of 1.2 indicates that the independent variable changes 12 units for every 10 unit change in the dependent variable. 4. If a variable is normally distributed with a mean of 50 and a variance of 9, then approximately 68% of scores are...
Select the BEST answer for each of the questions below (I true, F- false). Cirele the letter that corresponds with the answer you have selected. Each question is worth 2 points. [Total 40 points) Answer uestion E1. Power is the ability to reject the null hypothesis when it should be rejected 2. With curvilinear data, the Pearson r statistic is an appropriate, accurate statistical tool In a research report, the term statistically significant is used to indicate that the null...
2. (2 True-False. Just say whether each statement is True or False – no need to justify your answer. 1. If the number of trials in the binomial distribution increases by 1 (and P equals .50), the probability of getting either of the most extreme possible outcomes (that is, 0 or N) is cut in half. 2. If the number of trials in the binomial distribution increases by 1 (and P does not equal .50), the probability of getting either of...
answer all please In an analysis of variance, the MS between and MS within represent the means of the squared variability between and within conditions. True • False QUESTION 14 If an analysis of variance produces SS between 30 and MS between 10, then the ANOVA is comparing three treatment conditions. True False QUESTION 15 Compared to an independent measures design a repeated measures study is more likely to find a statistically significant effect because it reduces the contribution of...
this is a single sample t test problem this is math Assignment #11 Single Sample t-Test What factor determines whether you should use a z-test or a t-test statistic for a hypothesis test? 11.1 A sample is selected from a population mean of u 30. A treatment is administered to the individuals in the sample and, after treatment, the sample mean found to be M 11.2 = 31.3 with a sample variance of s2 9 If the sample consists of...
Name: Section Number To be graded assignments must be completed and submitted on the original book page Hypothesis Testing -As a Diagnostic Test ? Answer the following questions over the content material you just read or watched. 1. What is a false positive rate in the context of hypothesis testing? 2. What is the goal of hypothesis testing? 3. What is a Type I error, and how is it related to an "alpha level?" 4. What does it mean to...
The z-tests Help with this page is greatly appreciated. I dont understand how to show a full diagram. Thanks in advance :) The z-test 10.1 Assume that a treatment does have an effect and that the treatment effect is being evaluated with a z hypothesis test. If all factors are held constant, how is the outcome of the hypothesis test influenced by sample size? To answer this question, do the following two tests and compare the results. For both tests,...
Choose the correst answer(s) on questions 1-5 (Please Help) Question 1 Which of the following statements is true? (Select all correct answers) If the mean of two groups remains the same, the P value will not change even if the sample size (n) of those two groups changes. The P value is the probability that the alternative hypothesis is true. In a study of comparing the amount of alcohol consumed by men and women the null hypothesis would be defined...
Need help with stats true or false questions Decide (with short explanations) whether the following statements are true or false a) We consider the model y-Ao +A(z) +E. Let (-0.01, 1.5) be a 95% confidence interval for A In this case, a t-test with significance level 1% rejects the null hypothesis Ho : A-0 against a two sided alternative. b) Complicated models with a lot of parameters are better for prediction then simple models with just a few parameters c)...