Question

In: Math

Describe the kind of data that are collected for an independent-measures t-test and the hypotheses that...

Describe the kind of data that are collected for an independent-measures t-test and the hypotheses that the test evaluates. The key to helping formulate your explanation would be to include the assumptions of this statistical model, the type of sample used in this model, and a statement about the null hypothesis.

Solutions

Expert Solution

Independent-measures t-test :

1)you have to check equality of variance

Formula F = σ1^2/σ2^2 or S1^2/S2^2

F < Fcritical, Equal variance is not rejected

F > Fcritical, Equal variance is rejected

2)you have to decide it is Two-tailed or one-tailed test

If it is one-tailed rejection region will be different than two-tailed

That means the critical value will be changed

3) Find t statistics value

4) Find P-value from t value

If P-value > significance level, the Null hypothesis is not rejected

If P-value < significance level, the Null hypothesis is rejected

5)Using P value you have to write the conclusion whether it is not enough evidence to claim or is enough evidence to claim


Related Solutions

Describe the kind of data that are collected for an independent-measures t test and the hypotheses...
Describe the kind of data that are collected for an independent-measures t test and the hypotheses that the test evaluates. The key to helping formulate your explanation would be to include the assumptions of this statistical model, the type of sample used in this model, and a statement about the null hypothesis.
Describe the kind of data that are collected for an independent-measures t test and the hypotheses...
Describe the kind of data that are collected for an independent-measures t test and the hypotheses that the test evaluates. The key to helping formulate your explanation would be to include the assumptions of this statistical model, the type of sample used in this model, and a statement about the null hypothesis.
Describe what an independent-measures t-test is. Compare it to a real world example
Describe what an independent-measures t-test is. Compare it to a real world example
One way to write the research hypothesis for the independent-measures t-test is:
One way to write the research hypothesis for the independent-measures t-test is:
12. Comparing ANOVA and the t test for an independent-measures hypothesis test Suzanne Zeedyk, a developmental...
12. Comparing ANOVA and the t test for an independent-measures hypothesis test Suzanne Zeedyk, a developmental psychologist at Dundee University’s School of Psychology, conducted a pilot study in which parents started a half-hour walk with their infants in a parent-facing or an away-facing stroller and then switched to the other type of stroller midway. Her results suggest that parents talked less to the babies, the babies had higher heart rates, and they were less likely to fall asleep in away-facing...
5. TWO (INDEPENDENT) SAMPLE T-TEST (a) Describe the independent samples t-test for two means briefly. How...
5. TWO (INDEPENDENT) SAMPLE T-TEST (a) Describe the independent samples t-test for two means briefly. How does it do it? (b) State the null and the alternative hypothesis. (c) State the assumptions. (d) State the formula for the test statistic. (e) State the rejection rule with (How to reject the null hypothesis) (f) Give an real life example of how we can use the independent samples t-test for two means.
TWO (INDEPENDENT) SAMPLE T-TEST (a)Describe the independent samples t-test for two means briefly. How does it...
TWO (INDEPENDENT) SAMPLE T-TEST (a)Describe the independent samples t-test for two means briefly. How does it do it? (b) State the null and the alternative hypothesis. (c) State the assumptions. (d) State the formula for the test statistic. (e) State the rejection rule with (How to reject the null hypothesis) (f) Give an real life example of how we can use the independent samples t-test for two means.
: 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...
Problem #2 1) Conduct an independent-measures t-test using the following data set: Group 1: 12 10...
Problem #2 1) Conduct an independent-measures t-test using the following data set: Group 1: 12 10 15 12 4 16 6 10 8 Group 2: 8 5 9 0 6 5 0 1 - 2) Determine the critical values (for an alpha of .05) that you should use to evaluate this t-score. Please be clear with your steps on how you solved. How did you get each number and whether or not the hypothesis is rejected.
What kind of data lend themselves to perform an analysis of variance and/or an independent-samples t...
What kind of data lend themselves to perform an analysis of variance and/or an independent-samples t test? Given your answer above, why should you use analysis of variance instead of just using an independent-samples t test?
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT