Question

In: Statistics and Probability

both questions go together 6.  If the null hypothesis in a t-test for two samples is not...

both questions go together

6.  If the null hypothesis in a t-test for two samples is not rejected, what conclusion can be drawn about the two means of the categorical variable? Fail to reject null hypothesis'

8.  Assume you collected larger samples of individuals to test your null hypothesis in question #6.  Specifically, the sample sizes increased to 200 subjects in each group.  Do your results and conclusions change from the test of the smaller sample sizes?  (You must show your work).

Solutions

Expert Solution

orchestra answered 1 year ago
Next > < Previous

Related Solutions

: Independent Samples t Test Criterion: Identify IV, DV, and hypotheses and evaluate the null hypothesis...
: Independent Samples t Test Criterion: Identify IV, DV, and hypotheses and evaluate the null hypothesis for an independent samples t test. Data: Minutes of practice: Group 1: 55, 44, 62, 30, 78, 50, 52. Group 2: 31, 40, 53, 22, 41, 16, 33. Complete the following: a. Identify the IV and DV in the study. b. State the null hypothesis and the directional (one-tailed) alternative hypothesis. c. Can you reject the null hypothesis at α = .05? Explain why...
find the critical t value used to test a null hypothesis if a=0.05 for a two...
find the critical t value used to test a null hypothesis if a=0.05 for a two tailed test with 12 degrees of freedom
Use a t-test to test the null hypothesis H0: µX = µY against the two-sided alternative...
Use a t-test to test the null hypothesis H0: µX = µY against the two-sided alternative Ha: µX ≠ µY. Use R program (a) Generate 30 values from X ~ N (µX = 10, σX = 4) and 30 values from Y ~ N (µY = 10, σY = 4). . Use a t-test to test the hypotheses given above. (b) Include a comment in your code that identifies the p-value and clearly state the conclusion of the test in...
Assignment #3: Independent Samples T test Conduct an Independent Samples T test to answer the questions...
Assignment #3: Independent Samples T test Conduct an Independent Samples T test to answer the questions based on the following scenario. (Assume a non-directional research hypothesis (two-tailed test) and a level of significance of .05) The superintendent who collected data for Assignments 1 and 2, continued to examine the district’s data. One question that concerned the superintendent’s constituencies was the difference between the school performance scores of the superintendent’s district and a neighboring district that had similar demographic and socio-economic...
Assignment #3: Independent Samples T test Conduct an Independent Samples T test to answer the questions...
Assignment #3: Independent Samples T test Conduct an Independent Samples T test to answer the questions based on the following scenario. (Assume a non-directional research hypothesis (two-tailed test) and a level of significance of .05) The superintendent who collected data for Assignments 1 and 2, continued to examine the district’s data. One question that concerned the superintendent’s constituencies was the difference between the school performance scores of the superintendent’s district and a neighboring district that had similar demographic and socio-economic...
Assume a test of the null hypothesis that requires a t-test (rather than a z-test). Sample...
Assume a test of the null hypothesis that requires a t-test (rather than a z-test). Sample size is 25 and alpha is .05. Which of the following would be appropriate critical t values for a 2-tailed test and a one-tailed test, respectively, of the null hypothesis? Question 21 options: a) +2.064, + 1.711 b) +2.064, +1.711 c) +2.064, +1.711 d) +2.064, + or - 1.711
A t statistic was used to conduct a test of the null hypothesis H0: µ =...
A t statistic was used to conduct a test of the null hypothesis H0: µ = 11 against the alternative Ha: µ ≠ 11, with a p-value equal to 0.042. A two-sided confidence interval for µ is to be considered. Of the following, which is the largest level of confidence for which the confidence interval will NOT contain 11? A 90% confidence level A 92% confidence level A 96% confidence level A 97% confidence level A 98% confidence level
Please state two research questions that might be answered with a Null hypothesis significance test/ please...
Please state two research questions that might be answered with a Null hypothesis significance test/ please state in everyday language what the "NULL/COMPARISON" hypotheses would be, as well as the ALTERNATIVE/RESEARCH hypothesis.
A Three students independently collect different samples of size 20 to test a null hypothesis that...
A Three students independently collect different samples of size 20 to test a null hypothesis that the average number of eggs in a fairy wren's nest is 2. In reality, the null hypothesis is true, but the students do not know this. Each student sets the level of significance of his/her hypothesis test at 0.05. What is the probability that at least one student will commit a Type I error? a. 0.86 b. 0.05 c. 0.95 d. 0.14 B In...
Test the null hypothesis of independence of the two classifications A and B of the 3x2...
Test the null hypothesis of independence of the two classifications A and B of the 3x2 contingency table shown below. Use alpha = 0.05. Males Females In Favor of X 40 72 Against X 63 53 where X can be any policy issue. The null hypothesis is that gender (Males/Females) does not affect the views on X (in favor/against). The alternative is that there is a gender bias ( the view is not independent of gender) . Remember that the...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT