What is the first step in applying the sign test? a. rank the paired data from...
What is the first step in applying the sign test?
a. rank the paired data from high to low or vice versa
b. apply a correction factor to each observation
c. determine sign difference between each observed pair of data
d. determine the number of degrees of freedom.
What is a null hypothesis for a one-tail sign test?
Homework Answers
(1) The first step in applying the sign test is:
Determine sign difference between each observed pair of data. [Option(C)]
(2) The null hypothesis for the sign test is that the difference between medians is zero.
Add Answer to:
What is the first step in applying the sign test?
a. rank the paired data from...
QUESTION 4 When using a Student’s t distribution for a paired differences test with 5 data...
QUESTION 4 When using a Student’s t distribution for a paired differences test with 5 data pairs, what value do you use for the degrees of freedom? what is the critical value for a 5% level of significance for a two tail test (alternate hypothesis is that there is a difference)?
5. A step-by-step hypothesis test for a repeated-measures design Aa Aa E Consider the following data...
5. A step-by-step hypothesis test for a repeated-measures design Aa Aa E Consider the following data from a repeated-measures design. You want to use a repeated-measures t test to test the null hypothesis Ho: Wp = 0 (the null hypothesis states that the mean difference for the general population is zero). The data consist of five observations, each with two measurements, A and B, taken before and after a treatment. Assume the population of the differences in these measurements are...
Step-by-step explanations are preferred; just the answer doesn't help me learn. Let’s say we collect data...
Step-by-step explanations are preferred; just the answer doesn't help me learn. Let’s say we collect data on a sample of 5 people regarding pretest aggression. The aggression measure is on a scale of 1 = low aggression to 10 = high aggression. After initial data collection, we do an intervention aimed at improving self-control and reducing aggression. After the intervention, we measure the same 5 people with the same aggression measure to get a posttest measure of aggression. Here are...
Now suppose a larger sample (30 pairs vs 10 pairs) was collected and a paired t test was used to analyze the data. The...
Now suppose a larger sample (30 pairs vs 10 pairs) was collected and a paired t test was used to analyze the data. The output is shown below. Paired Samples Statistics Mean N Std. Deviation Std. Error Mean Pair 1 Female salaries 6773.33 30 782.099 142.791 Male salaries 7213.33 30 875.227 159.794 Paired Samples Correlations N Correlation Sig. Pair 1 Female salaries & Male salaries 30 .881 .000 Paired Samples Test Paired Differences t df Sig. (2-tailed) Mean Std. Deviation...
Question: Calcul UNS UIT Logic: Test the Step 1 What is the research problem? null Step...
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5. A step-by-step hypothesis test for a repeated measures design Aa Aa E Consider the following...
5. A step-by-step hypothesis test for a repeated measures design Aa Aa E Consider the following data from a repeated-measures design. You want to use a repeated-measures t test to test the null hypothesis Ho: D 0 (the null hypothesis states that the mean difference for the general population is zero). The data consist of five observations, each with two measurements, A and B, taken before and after a treatment. Assume the population of the differences in these measurements are...
11. What is the null hypothesis for a t-test for two independent groups? a. If mul...
11. What is the null hypothesis for a t-test for two independent groups? a. If mul and mu2 are the population means of the two groups, then the null hypothesis is Ho: mul-mu2=0. b. If sl and s2 are the population standard deviations of the two groups, then the null hypothesis is Ho: sl-s2=0. 12. Differentiate between a data set that should be analyzed using a paired t-test from a data set that should be analyzed using a t-test for...
step 1 - set of hypotheses step 2 - significance level step 3 - test statistic...
step 1 - set of hypotheses
step 2 - significance level
step 3 - test statistic and distribution (including degrees of
freedom)
step 4 - rejection region (in words)
step 5 - statistical conclusion
step 6 - managerial conclusion
A toy manufacturer has developed a new toy and now wants to know if the toy should be positioned in the marketplace as a toy for boys or for girls. In order to answer this research question, one of your colleagues...
Consider the following data from a repeated-measures design. You want to use a repeated-measures t test...
Consider the following data from a repeated-measures design. You want to use a repeated-measures t test to test the null hypothesis H_0: mu_D = 0 (the null hypothesis states that the mean difference for the general population is zero). The data consist of five observations, each with two measurements, A and B, taken before and after a treatment. Assume the population of the differences in these measurements are normally distributed. Complete the following table by calculating the differences and the...
5. A step-by-step hypothesis test for a repeated-measures design Aa Aa E Consider the following data from a repeated-measures design. You want to use a repeated-measures t test to test the null hypothesis Ho: Wp = 0 (the null hypothesis states that the mean difference for the general population is zero). The data consist of five observations, each with two measurements, A and B, taken before and after a treatment. Assume the population of the differences in these measurements are...
Question: Calcul UNS UIT Logic: Test the Step 1 What is the research problem? null Step 2 What is the null hypothesis? hypothesis What is the alternative hypothesis? that this Step 3 What are the coin is degrees of unbiased, freedom? that is, that What is the decision rule? heads and Step 4 What is the critical tails are X ? equally What is the value of likely to X? (you will need to appear in calculate this) the long...
5. A step-by-step hypothesis test for a repeated measures design Aa Aa E Consider the following data from a repeated-measures design. You want to use a repeated-measures t test to test the null hypothesis Ho: D 0 (the null hypothesis states that the mean difference for the general population is zero). The data consist of five observations, each with two measurements, A and B, taken before and after a treatment. Assume the population of the differences in these measurements are...
11. What is the null hypothesis for a t-test for two independent groups? a. If mul and mu2 are the population means of the two groups, then the null hypothesis is Ho: mul-mu2=0. b. If sl and s2 are the population standard deviations of the two groups, then the null hypothesis is Ho: sl-s2=0. 12. Differentiate between a data set that should be analyzed using a paired t-test from a data set that should be analyzed using a t-test for...
step 1 - set of hypotheses
step 2 - significance level
step 3 - test statistic and distribution (including degrees of
freedom)
step 4 - rejection region (in words)
step 5 - statistical conclusion
step 6 - managerial conclusion
A toy manufacturer has developed a new toy and now wants to know if the toy should be positioned in the marketplace as a toy for boys or for girls. In order to answer this research question, one of your colleagues...
Consider the following data from a repeated-measures design. You want to use a repeated-measures t test to test the null hypothesis H_0: mu_D = 0 (the null hypothesis states that the mean difference for the general population is zero). The data consist of five observations, each with two measurements, A and B, taken before and after a treatment. Assume the population of the differences in these measurements are normally distributed. Complete the following table by calculating the differences and the...
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